Shortcuts With Global Scope

command-option-esc force quit
command-option-eject sleep now
command-shift-Q log out
command-shift-option-Q log out without confirmation
command-control-eject restart
control-shift-eject sleep displays
command-option-control-eject shut down
command-tab cycle between open applications
command-` *after* having pressed command-tab, it will cycle between open applications in reverse
command-shift-tab cycle between open applications in reverse direction
command-` cycle between open windows in the selected application
command-shift-` cycle between open windows in the selected application in reverse direction
control-F4 cycle between open windows in all applications
control-shift-F4 cycle between open windows in all applications in reverse direction
F8 Spaces (Leopard only)
F9 Exposé for all windows (Panther and newer)
F10 Exposé for all windows in selected application
F11 Exposé to reveal desktop
F12 Dashboard (Tiger and newer)
control-# Jump to a space (10.5+)
control-arrow Cycle through spaces (10.5+)
control-F2 activate keyboard control of the menu bar
control-F3 activate keyboard control of the Dock
control-F8 activate keyboard control of the Menu Extras (right side of menu bar)
command-space activate Spotlight (Tiger) or switch between keyboard layouts (pre-Tiger systems)
command-option-control-, decrease the screen contrast
command-option-control-. increase the screen contrast
command-option-8 turn screen zooming on or off
command-option-= zoom in (if screen zooming is on)
command-option– zoom out
command-option-control-8 invert the screen colors
command-delete send file to trash
command-space open a Spotlight search
command-option-space open a Spotlight search in a finder “Find” window
spacebar when dragging file onto folder it will spring open without the usual delay
shift-volume Change volume without sound effect
option-shift-volume Fine-grained volume control (10.5+ ?)
option-volume Sound Preference Pane
option-brightness Display Preference Pane
command-decrease-brightness Change display mode (only on revised fn keyboard layout on Alu. keyboards, newer MBP/MBs?)

Shortcuts Common to Most Applications

enter choose blue button in dialogue box (usually “enter” or “accept”)
spacebar simulate a mouse click on focused object (i.e., the button or control that has a blue halo around it)
command-shift-? Search application help. As of 10.5, this also FAYT searches available menu items. It also activates the menu bar as keyboard navigable if the search string is empty.
command-d don’t save
command-+ increase font size
command– decrease font size
command-, preferences
command-? help
command-: spelling
command-; check spelling
command-A select all
command-C copy
command-shift-C show colors
command-E use selection for find
command-F find
command-G find next
command-H hide
command-option-H hide others
command-M minimize
command-N new
command-O open
command-P print
command-Q quit
command-S save
command-T show fonts
command-V paste
command-W close
command-X cut
command-Z undo