diff --git a/tabbedcontainer.go b/tabbedcontainer.go
index 784ce69..a8df8b9 100644
--- a/tabbedcontainer.go
+++ b/tabbedcontainer.go
@@ -6,8 +6,8 @@ import "git.tebibyte.media/tomo/objects/layouts"
 
 var _ tomo.Object = new(TabbedContainer)
 
-// TODO doc this!
-
+// TabbedContainer holds multiple objects, each in their own tab. The user can
+// click the tab bar at the top to choose which one is activated.
 type TabbedContainer struct {
 	box tomo.ContainerBox
 	
@@ -18,6 +18,7 @@ type TabbedContainer struct {
 	tabs []*tab
 }
 
+// NewTabbedContainer creates a new tabbed container.
 func NewTabbedContainer () *TabbedContainer {
 	tabbedContainer := &TabbedContainer {
 		box: tomo.NewContainerBox(),
@@ -46,6 +47,7 @@ func (this *TabbedContainer) GetBox () tomo.Box {
 	return this.box
 }
 
+// Activate switches to a named tab.
 func (this *TabbedContainer) Activate (name string) {
 	if _, tab := this.findTab(this.active); tab != nil {
 		tab.setActive(false)
@@ -60,6 +62,7 @@ func (this *TabbedContainer) Activate (name string) {
 	this.active = name
 }
 
+// AddTab adds an object as a tab with the specified name.
 func (this *TabbedContainer) AddTab (name string, root tomo.Object) {
 	tab := &tab {
 		TextBox: tomo.NewTextBox(),
@@ -88,6 +91,7 @@ func (this *TabbedContainer) AddTab (name string, root tomo.Object) {
 	}
 }
 
+// RemoveTab removes the named tab.
 func (this *TabbedContainer) RemoveTab (name string) {
 	index, tab := this.findTab(name)
 	if index < 0 { return }
@@ -106,6 +110,7 @@ func (this *TabbedContainer) RemoveTab (name string) {
 	}
 }
 
+// ClearTabs removes all tabs.
 func (this *TabbedContainer) ClearTabs () {
 	this.tabs = nil
 	this.tabsRow.Clear()