Tools
Shortcut: V
Move Tool
Shortcut: Spacebar (hold)
Temporary Hand Tool (Pan around)
Holding Shift while making a selection
Add to selection
Shortcut: Ctrl + C
Copy
Ctrl + V
Paste
Shortcut: B
Brush Tool
Shortcut: Ctrl + 0
Fit on Screen
Holding Alt (Option) while using selection tool
Subtract from selection
Shortcut: Ctrl + V
Paste
Ctrl + K
Preferences Panel
Shortcut: E
Eraser Tool
Shortcut: Ctrl + H
Hide Extras
Shift + Ctrl + I
Inverse Selection
Ctrl + E
Merge Down
Ctrl + T
Transform
Shortcut: T
Text Tool
Shortcut: Shift + Tab
Hide/Show Side Panels
Holding ALT with the Eclipse Marquee selection
makes a proportionate circle selection
Dragging a layer while holding Alt
Duplicate the layer
Ctrl + D
Deselect
Shortcut: C
Crop Tool
Shortcut: F
Change Screen View Mode
Ctrl + Click (Cmd + Click) on layer thumbnail
Load selection based on layer’s contents
Shortcut: Ctrl + Alt + Shift + E
Stamp Visible (onto new layer)
Ctrl + J
Duplicate Layer