Many commands have keyboard shortcut equivalents, so you can complete tasks faster with minimal use of the mouse.

Result	Short Cut
TRANSPORT
Play/Pause	Spacebar
Step One Frame	Arrow Right
Step Back One Frame	Arrow Left
Step 10 Frames	Arrow Up
Step Back 10 Frames	Arrow Down
Snap To Selected Keyframe	K
Toggle Timeline Units Frame/Time	T
KEYFRAME EDITING
Insert Keyframe	I
Delete Keyframe	Delete
Undo	Ctrl+Z
Redo	Ctrl+Shift Z , Ctrl+Y
Select Next Keyframe	Tab
Select Previous Keyframe	Shift+Tab
Move Keyframe Ahead By One Frame	Shift+Arrow Right
Move Keyframe Back By One Frame	Shift+Arrow Left
Move Keyframe Ahead By 10 Frames	Ctrl+Arrow Right
Move Keyframe Back By 10Frames	Ctrl+Arrow Left
Increase Value Of Keyframe	Shift+Arrow Up
Increase Value Of Keyframe Larger Increments	Ctrl+Arrow Up
Decrease Value Of Keyframe Larger Increments	Ctrl+Arrow Down
Move All Subsequent Keyframes	Alt+Arrows (Up, Down,Left, Right)
Move All Subsequent Keyframes In Large Increments	Alt+Ctrl+Arrows (Up, Down,Left, Right)
Switch To Next Channel / Parameter with Keyframes	. (Period)
Switch To Previous Channel / Parameter with Keyframes	, (Comma)
Switch To Next Channel / Parameter	Shift+. (Period)
Switch To Previous Channel / Parameter	Shift+, (Comma)
MOUSE	Interaction
Select Keyframe	Left Click Keyframe
Contextual Keyframe Menu	Right Click Keyframe
Move Keyframe With Time Locked	Ctrl+Mouse Pointer
Move Keyframe With Value Locked	Shift+Mouse Pointer
Move All Subsequent Keyframes	Alt+Mouse Pointer
Move All Subsequent Keyframes With Time Locked	Alt+Ctrl Mouse Pointer
Move All Subsequent Keyframes With Value Locked	Alt+Shift Mouse Pointer
Zoom In / Out Of Y Axis (Value)	Mouse Wheel (+Shift to Accelerate)
Zoom In / Out X Axis (Time)	Ctrl+Mouse Wheel (+Shift to Accelerate)