diff --git a/Libraries/LibGUI/AboutDialog.cpp b/Libraries/LibGUI/AboutDialog.cpp
index 2a6982ffe5..4a0087307f 100644
--- a/Libraries/LibGUI/AboutDialog.cpp
+++ b/Libraries/LibGUI/AboutDialog.cpp
@@ -47,22 +47,22 @@ AboutDialog::AboutDialog(const StringView& name, const Gfx::Bitmap* icon, Core::
     widget->set_fill_with_background_color(true);
     widget->set_layout(make<HorizontalBoxLayout>());
 
-    auto left_container = Widget::construct(widget.ptr());
+    auto left_container = widget->add<Widget>();
     left_container->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
     left_container->set_preferred_size(48, 0);
     left_container->set_layout(make<VerticalBoxLayout>());
-    auto icon_label = Label::construct(left_container);
+    auto icon_label = left_container->add<Label>();
     icon_label->set_icon(m_icon);
     icon_label->set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
     icon_label->set_preferred_size(40, 40);
     left_container->layout()->add_spacer();
 
-    auto right_container = Widget::construct(widget.ptr());
+    auto right_container = widget->add<Widget>();
     right_container->set_layout(make<VerticalBoxLayout>());
     right_container->layout()->set_margins({ 0, 4, 4, 4 });
 
     auto make_label = [&](const StringView& text, bool bold = false) {
-        auto label = Label::construct(text, right_container);
+        auto label = right_container->add<Label>(text);
         label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
         label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
         label->set_preferred_size(0, 14);
@@ -75,12 +75,12 @@ AboutDialog::AboutDialog(const StringView& name, const Gfx::Bitmap* icon, Core::
 
     right_container->layout()->add_spacer();
 
-    auto button_container = Widget::construct(right_container.ptr());
+    auto button_container = right_container->add<Widget>();
     button_container->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     button_container->set_preferred_size(0, 20);
     button_container->set_layout(make<HorizontalBoxLayout>());
     button_container->layout()->add_spacer();
-    auto ok_button = Button::construct("OK", button_container);
+    auto ok_button = button_container->add<Button>("OK");
     ok_button->set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
     ok_button->set_preferred_size(80, 20);
     ok_button->on_click = [this](auto&) {
diff --git a/Libraries/LibGUI/AbstractButton.cpp b/Libraries/LibGUI/AbstractButton.cpp
index acbb1e205a..27f3ed998c 100644
--- a/Libraries/LibGUI/AbstractButton.cpp
+++ b/Libraries/LibGUI/AbstractButton.cpp
@@ -40,7 +40,7 @@ AbstractButton::AbstractButton(const StringView& text, Widget* parent)
     : Widget(parent)
     , m_text(text)
 {
-    m_auto_repeat_timer = Core::Timer::construct(this);
+    m_auto_repeat_timer = add<Core::Timer>();
     m_auto_repeat_timer->on_timeout = [this] {
         click();
     };
diff --git a/Libraries/LibGUI/ColorPicker.cpp b/Libraries/LibGUI/ColorPicker.cpp
index 4e3e7906b1..cc6b0700b5 100644
--- a/Libraries/LibGUI/ColorPicker.cpp
+++ b/Libraries/LibGUI/ColorPicker.cpp
@@ -54,10 +54,10 @@ void ColorPicker::build()
     horizontal_container->layout()->set_margins({ 4, 4, 4, 4 });
     set_main_widget(horizontal_container);
 
-    auto left_vertical_container = Widget::construct(horizontal_container.ptr());
+    auto left_vertical_container = horizontal_container->add<Widget>();
     left_vertical_container->set_layout(make<VerticalBoxLayout>());
 
-    auto right_vertical_container = Widget::construct(horizontal_container.ptr());
+    auto right_vertical_container = horizontal_container->add<Widget>();
     right_vertical_container->set_layout(make<VerticalBoxLayout>());
 
     enum RGBComponent {
@@ -66,19 +66,19 @@ void ColorPicker::build()
         Blue
     };
 
-    m_preview_widget = Frame::construct(right_vertical_container);
+    m_preview_widget = right_vertical_container->add<Frame>();
     auto pal = m_preview_widget->palette();
     pal.set_color(ColorRole::Background, m_color);
     m_preview_widget->set_fill_with_background_color(true);
     m_preview_widget->set_palette(pal);
     right_vertical_container->layout()->add_spacer();
-    auto cancel_button = Button::construct("Cancel", right_vertical_container);
+    auto cancel_button = right_vertical_container->add<Button>("Cancel");
     cancel_button->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     cancel_button->set_preferred_size(0, 20);
     cancel_button->on_click = [&](auto&) {
         done(Dialog::ExecCancel);
     };
-    auto ok_button = Button::construct("Okay", right_vertical_container);
+    auto ok_button = right_vertical_container->add<Button>("Okay");
     ok_button->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     ok_button->set_preferred_size(0, 20);
     ok_button->on_click = [&](auto&) {
@@ -86,7 +86,7 @@ void ColorPicker::build()
     };
 
     auto make_spinbox = [&](RGBComponent component, int initial_value) {
-        auto spinbox = SpinBox::construct(left_vertical_container);
+        auto spinbox = left_vertical_container->add<SpinBox>();
         spinbox->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
         spinbox->set_preferred_size(0, 20);
         spinbox->set_min(0);
diff --git a/Libraries/LibGUI/ComboBox.cpp b/Libraries/LibGUI/ComboBox.cpp
index d791774f70..ebe0043357 100644
--- a/Libraries/LibGUI/ComboBox.cpp
+++ b/Libraries/LibGUI/ComboBox.cpp
@@ -47,7 +47,7 @@ ComboBox::ComboBox(Widget* parent)
         if (on_return_pressed)
             on_return_pressed();
     };
-    m_open_button = Button::construct(this);
+    m_open_button = add<Button>();
     m_open_button->set_focusable(false);
     m_open_button->set_text("\xc3\xb7");
     m_open_button->on_click = [this](auto&) {
diff --git a/Libraries/LibGUI/FilePicker.cpp b/Libraries/LibGUI/FilePicker.cpp
index 3044921c7a..9b5b78a434 100644
--- a/Libraries/LibGUI/FilePicker.cpp
+++ b/Libraries/LibGUI/FilePicker.cpp
@@ -86,26 +86,26 @@ FilePicker::FilePicker(Mode mode, const StringView& file_name, const StringView&
     horizontal_container->layout()->set_margins({ 4, 4, 4, 4 });
     horizontal_container->set_fill_with_background_color(true);
 
-    auto vertical_container = Widget::construct(horizontal_container.ptr());
+    auto vertical_container = horizontal_container->add<Widget>();
     vertical_container->set_layout(make<VerticalBoxLayout>());
     vertical_container->layout()->set_spacing(4);
 
-    auto upper_container = Widget::construct(vertical_container.ptr());
+    auto upper_container = vertical_container->add<Widget>();
     upper_container->set_layout(make<HorizontalBoxLayout>());
     upper_container->layout()->set_spacing(4);
     upper_container->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     upper_container->set_preferred_size(0, 26);
 
-    auto toolbar = ToolBar::construct(upper_container);
+    auto toolbar = upper_container->add<ToolBar>();
     toolbar->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
     toolbar->set_preferred_size(85, 0);
     toolbar->set_has_frame(false);
 
-    auto location_textbox = TextBox::construct(upper_container);
+    auto location_textbox = upper_container->add<TextBox>();
     location_textbox->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     location_textbox->set_preferred_size(0, 20);
 
-    m_view = TableView::construct(vertical_container);
+    m_view = vertical_container->add<TableView>();
     m_view->set_model(SortingProxyModel::create(*m_model));
     m_view->set_column_hidden(FileSystemModel::Column::Owner, true);
     m_view->set_column_hidden(FileSystemModel::Column::Group, true);
@@ -132,7 +132,7 @@ FilePicker::FilePicker(Mode mode, const StringView& file_name, const StringView&
     toolbar->add_separator();
 
     auto mkdir_action = Action::create("New directory...", Gfx::Bitmap::load_from_file("/res/icons/16x16/mkdir.png"), [this](const Action&) {
-        auto input_box = InputBox::construct("Enter name:", "New directory", this);
+        auto input_box = add<InputBox>("Enter name:", "New directory");
         if (input_box->exec() == InputBox::ExecOK && !input_box->text_value().is_empty()) {
             auto new_dir_path = FileSystemPath(String::format("%s/%s",
                                                    m_model->root_path().characters(),
@@ -148,21 +148,21 @@ FilePicker::FilePicker(Mode mode, const StringView& file_name, const StringView&
     });
     toolbar->add_action(*mkdir_action);
 
-    auto lower_container = Widget::construct(vertical_container.ptr());
+    auto lower_container = vertical_container->add<Widget>();
     lower_container->set_layout(make<VerticalBoxLayout>());
     lower_container->layout()->set_spacing(4);
     lower_container->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     lower_container->set_preferred_size(0, 60);
 
-    auto filename_container = Widget::construct(lower_container.ptr());
+    auto filename_container = lower_container->add<Widget>();
     filename_container->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     filename_container->set_preferred_size(0, 20);
     filename_container->set_layout(make<HorizontalBoxLayout>());
-    auto filename_label = Label::construct("File name:", filename_container);
+    auto filename_label = filename_container->add<Label>("File name:");
     filename_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
     filename_label->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
     filename_label->set_preferred_size(60, 0);
-    m_filename_textbox = TextBox::construct(filename_container.ptr());
+    m_filename_textbox = filename_container->add<TextBox>();
     if (m_mode == Mode::Save) {
         m_filename_textbox->set_text(file_name);
         m_filename_textbox->set_focus(true);
@@ -185,14 +185,14 @@ FilePicker::FilePicker(Mode mode, const StringView& file_name, const StringView&
         set_preview(path);
     };
 
-    auto button_container = Widget::construct(lower_container.ptr());
+    auto button_container = lower_container->add<Widget>();
     button_container->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     button_container->set_preferred_size(0, 20);
     button_container->set_layout(make<HorizontalBoxLayout>());
     button_container->layout()->set_spacing(4);
     button_container->layout()->add_spacer();
 
-    auto cancel_button = Button::construct(button_container);
+    auto cancel_button = button_container->add<Button>();
     cancel_button->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
     cancel_button->set_preferred_size(80, 0);
     cancel_button->set_text("Cancel");
@@ -200,7 +200,7 @@ FilePicker::FilePicker(Mode mode, const StringView& file_name, const StringView&
         done(ExecCancel);
     };
 
-    auto ok_button = Button::construct(button_container);
+    auto ok_button = button_container->add<Button>();
     ok_button->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
     ok_button->set_preferred_size(80, 0);
     ok_button->set_text(ok_button_name(m_mode));
@@ -222,7 +222,7 @@ FilePicker::FilePicker(Mode mode, const StringView& file_name, const StringView&
         }
     };
 
-    auto preview_container = Frame::construct(horizontal_container);
+    auto preview_container = horizontal_container->add<Frame>();
     preview_container->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
     preview_container->set_preferred_size(180, 0);
     preview_container->set_frame_shape(Gfx::FrameShape::Container);
@@ -231,17 +231,17 @@ FilePicker::FilePicker(Mode mode, const StringView& file_name, const StringView&
     preview_container->set_layout(make<VerticalBoxLayout>());
     preview_container->layout()->set_margins({ 8, 8, 8, 8 });
 
-    m_preview_image_label = Label::construct(preview_container);
+    m_preview_image_label = preview_container->add<Label>();
     m_preview_image_label->set_should_stretch_icon(true);
     m_preview_image_label->set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
     m_preview_image_label->set_preferred_size(160, 160);
 
-    m_preview_name_label = Label::construct(preview_container);
+    m_preview_name_label = preview_container->add<Label>();
     m_preview_name_label->set_font(Gfx::Font::default_bold_font());
     m_preview_name_label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     m_preview_name_label->set_preferred_size(0, m_preview_name_label->font().glyph_height());
 
-    m_preview_geometry_label = Label::construct(preview_container);
+    m_preview_geometry_label = preview_container->add<Label>();
     m_preview_geometry_label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     m_preview_geometry_label->set_preferred_size(0, m_preview_name_label->font().glyph_height());
 }
diff --git a/Libraries/LibGUI/InputBox.cpp b/Libraries/LibGUI/InputBox.cpp
index a80d7c9d8c..e592ad90f4 100644
--- a/Libraries/LibGUI/InputBox.cpp
+++ b/Libraries/LibGUI/InputBox.cpp
@@ -28,7 +28,7 @@
 #include <LibGUI/Button.h>
 #include <LibGUI/InputBox.h>
 #include <LibGUI/Label.h>
-#include <LibGUI/TextEditor.h>
+#include <LibGUI/TextBox.h>
 #include <LibGfx/Font.h>
 #include <stdio.h>
 
@@ -63,24 +63,24 @@ void InputBox::build()
     widget->layout()->set_margins({ 8, 8, 8, 8 });
     widget->layout()->set_spacing(8);
 
-    auto label = Label::construct(m_prompt, widget);
+    auto label = widget->add<Label>(m_prompt);
     label->set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
     label->set_preferred_size(text_width, 16);
 
-    m_text_editor = TextEditor::construct(TextEditor::SingleLine, widget);
+    m_text_editor = widget->add<TextBox>();
     m_text_editor->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     m_text_editor->set_preferred_size(0, 19);
 
-    auto button_container_outer = Widget::construct(widget.ptr());
+    auto button_container_outer = widget->add<Widget>();
     button_container_outer->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     button_container_outer->set_preferred_size(0, 20);
     button_container_outer->set_layout(make<VerticalBoxLayout>());
 
-    auto button_container_inner = Widget::construct(button_container_outer.ptr());
+    auto button_container_inner = button_container_outer->add<Widget>();
     button_container_inner->set_layout(make<HorizontalBoxLayout>());
     button_container_inner->layout()->set_spacing(8);
 
-    m_cancel_button = Button::construct(button_container_inner);
+    m_cancel_button = button_container_inner->add<Button>();
     m_cancel_button->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     m_cancel_button->set_preferred_size(0, 20);
     m_cancel_button->set_text("Cancel");
@@ -89,7 +89,7 @@ void InputBox::build()
         done(ExecCancel);
     };
 
-    m_ok_button = Button::construct(button_container_inner);
+    m_ok_button = button_container_inner->add<Button>();
     m_ok_button->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     m_ok_button->set_preferred_size(0, 20);
     m_ok_button->set_text("OK");
diff --git a/Libraries/LibGUI/MessageBox.cpp b/Libraries/LibGUI/MessageBox.cpp
index 5a2c2f6f9c..736a0f3236 100644
--- a/Libraries/LibGUI/MessageBox.cpp
+++ b/Libraries/LibGUI/MessageBox.cpp
@@ -35,7 +35,7 @@ namespace GUI {
 
 int MessageBox::show(const StringView& text, const StringView& title, Type type, InputType input_type, Core::Object* parent)
 {
-    auto box = MessageBox::construct(text, title, type, input_type, parent);
+    auto box = parent->add<MessageBox>(text, title, type, input_type);
     return box->exec();
 }
 
@@ -103,29 +103,29 @@ void MessageBox::build()
 
     RefPtr<Widget> message_container = widget;
     if (m_type != Type::None) {
-        message_container = Widget::construct(widget.ptr());
+        message_container = widget->add<Widget>();
         message_container->set_layout(make<HorizontalBoxLayout>());
         message_container->layout()->set_margins({ 8, 0, 8, 0 });
         message_container->layout()->set_spacing(8);
 
-        auto icon_label = Label::construct(message_container);
+        auto icon_label = message_container->add<Label>();
         icon_label->set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
         icon_label->set_preferred_size(32, 32);
         icon_label->set_icon(icon());
         icon_width = icon_label->icon()->width();
     }
 
-    auto label = Label::construct(m_text, message_container);
+    auto label = message_container->add<Label>(m_text);
     label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
     label->set_preferred_size(text_width, 16);
 
-    auto button_container = Widget::construct(widget.ptr());
+    auto button_container = widget->add<Widget>();
     button_container->set_layout(make<HorizontalBoxLayout>());
     button_container->layout()->set_spacing(5);
     button_container->layout()->set_margins({ 15, 0, 15, 0 });
 
     auto add_button = [&](String label, Dialog::ExecResult result) {
-        auto button = Button::construct(button_container);
+        auto button = button_container->add<Button>();
         button->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
         button->set_preferred_size(0, 20);
         button->set_text(label);
diff --git a/Libraries/LibGUI/ScrollBar.cpp b/Libraries/LibGUI/ScrollBar.cpp
index fb8baf4ee1..73bdc42c16 100644
--- a/Libraries/LibGUI/ScrollBar.cpp
+++ b/Libraries/LibGUI/ScrollBar.cpp
@@ -95,7 +95,7 @@ ScrollBar::ScrollBar(Orientation orientation, Widget* parent)
     : Widget(parent)
     , m_orientation(orientation)
 {
-    m_automatic_scrolling_timer = Core::Timer::construct(this);
+    m_automatic_scrolling_timer = add<Core::Timer>();
     if (!s_up_arrow_bitmap)
         s_up_arrow_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_up_arrow_bitmap_data, 9, 9).leak_ref();
     if (!s_down_arrow_bitmap)
diff --git a/Libraries/LibGUI/Slider.h b/Libraries/LibGUI/Slider.h
index 60e5a0cc27..74f217bdcf 100644
--- a/Libraries/LibGUI/Slider.h
+++ b/Libraries/LibGUI/Slider.h
@@ -74,8 +74,8 @@ public:
     Function<void(int)> on_value_changed;
 
 protected:
-    explicit Slider(Widget*);
-    explicit Slider(Orientation, Widget*);
+    explicit Slider(Widget* = nullptr);
+    explicit Slider(Orientation, Widget* = nullptr);
 
     virtual void paint_event(PaintEvent&) override;
     virtual void mousedown_event(MouseEvent&) override;
diff --git a/Libraries/LibGUI/SpinBox.cpp b/Libraries/LibGUI/SpinBox.cpp
index cf093b5bed..26b71612f9 100644
--- a/Libraries/LibGUI/SpinBox.cpp
+++ b/Libraries/LibGUI/SpinBox.cpp
@@ -26,14 +26,14 @@
 
 #include <LibGUI/Button.h>
 #include <LibGUI/SpinBox.h>
-#include <LibGUI/TextEditor.h>
+#include <LibGUI/TextBox.h>
 
 namespace GUI {
 
 SpinBox::SpinBox(Widget* parent)
     : Widget(parent)
 {
-    m_editor = TextEditor::construct(TextEditor::Type::SingleLine, this);
+    m_editor = add<TextBox>();
     m_editor->set_text("0");
     m_editor->on_change = [this] {
         bool ok;
@@ -43,12 +43,12 @@ SpinBox::SpinBox(Widget* parent)
         else
             m_editor->set_text(String::number(m_value));
     };
-    m_increment_button = Button::construct(this);
+    m_increment_button = add<Button>();
     m_increment_button->set_focusable(false);
     m_increment_button->set_text("\xc3\xb6");
     m_increment_button->on_click = [this](auto&) { set_value(m_value + 1); };
     m_increment_button->set_auto_repeat_interval(150);
-    m_decrement_button = Button::construct(this);
+    m_decrement_button = add<Button>();
     m_decrement_button->set_focusable(false);
     m_decrement_button->set_text("\xc3\xb7");
     m_decrement_button->on_click = [this](auto&) { set_value(m_value - 1); };
diff --git a/Libraries/LibGUI/ToolBar.cpp b/Libraries/LibGUI/ToolBar.cpp
index fc0a6ca349..e387963bb7 100644
--- a/Libraries/LibGUI/ToolBar.cpp
+++ b/Libraries/LibGUI/ToolBar.cpp
@@ -65,7 +65,7 @@ void ToolBar::add_action(Action& action)
     item->type = Item::Type::Action;
     item->action = action;
 
-    auto button = Button::construct(this);
+    auto button = add<Button>();
     if (action.group() && action.group()->is_exclusive())
         button->set_exclusive(true);
     button->set_action(*item->action);