Mac OS is much more depending on mouse commands than Microsoft Windows. Anyway there are some shortcuts that make your switcher’s lives easier.
| Key |
Meaning |
| Cmd-Tab | change between programs (not between windows) |
| Fn-F9 | thumbnail overview of all windows |
| Alt-Cmd-Esc | kill programs instantly |
| Shift-Cmd-3 | screenshot of whole screen (saves on desktop) |
| Shift-Cmd-4 | select part of the screen for screenshot (saves on desktop) |
| Shift-Cmd-4 + Space | select active window for screenshot (saves on desktop) |
| Esc (in textfields) | auto complete |
| Cmd-PageDown | execute program/open subfolder (like return-key in MS-Windows) |
| Alt-Eject | instantly eject CD/DVD |
| Alt-Cmd-Eject | instantly go to sleep mode |
Cmd-Key = Apple-Key

Thanks Mpapa! Didn´t know about the uber-helpful auto-complete short yet, but always missed it.