Mine is shift-apple-4 - Paul Buchheit

cmd-option-H ftw - Phillip Kast

The same as Paul, simple, and efficient :) - directeur

Ctrol-Apple-D - looks up the definition of any word your mouse is hovering over - Patrick Lightbody

there are keyboard shortcuts? shoot! I just switched to Mac, forgive me :) - Zach Landes

Ctrl-space (the default setting to activate quicksilver). If you like keyboard shortcuts, and you haven't tried quicksilver, I would highly recommend it. Basically you activate the app, start typing and it searches applications, bookmarks, documents, and all sorts of stuff (all customizable), and gives you a list of them in a window, and then a list of available actions, like 'open', 'send e-mail', 'calculate', or 'look up in dictionary'. Really cool, and free. - Robert Felty

apple q - Tobias Boonstoppel

cntl-opt-cmd-8 - Kevin Fox

ctrl-space with quicksilver. without quicksilver it would be shift-apple-4 - Seth Gottlieb from twhirl

Kevin, Thanks for the cntl-opt-cmd-8 tip. I was just getting annoyed in this coffee shop trying to find the cursor in google docs. This command just solved this for me. - Jon-Paul Bussoli

Another reason why I like friendfeed for procrastination. It even helps my work! heh. - Jon-Paul Bussoli

ctrl-opt-cmd-8 is awesome Kevin! - Thomas Hawk

I agree with Kevin, freeked me out though..haven't done that before. - Dale Adams

Had never used ctrl-opt-cmd-8 ... that's awesome! - Clay Newton

@Kevin Nice one! - Daniel Shaw

Command - W. Closing windows! - Taylor

ctrl-opt-cmd-8 is sweet. Halloween every day! I'm still in the cmd-shft-4 camp though - toodles Snag It. - AJ Kohn

apple-option-esc is my most often used. I like to use force. - Eugene Huo

I am a simple command-w guy. - Jacob Nahin

Apple-W Apple-N and Apple-Q (in that order) - TranceMist

command-tab - Adam Thorsen

Ctrl + Mousewheel up/Mousewheel down - Mark Trapp

Just in case any of you have yet to find them all, open Keyboard ShortCuts in Keyboard & Mouse Preferences. - John Lam

Apple-Tab for me. BTW, Ctrl-Apple-D does not work on all words, for example, fails in twirl for me. Otherwise, I didn't know that option so THANKS! - Ivan Stegic from twhirl

Command+Z - l0ckergn0me

command(apple)-shift-/ opens help, and help goes and finds every other command in every application. i use it like i drink water. - Michael Staton

Ivan: the dictionary service will only work in Cocoa- or Carbon-based applications. Non-cocoa/carbon applications like Twhirl (based on Adobe AIR) don't have access to it. One of my major sticking points in using ported applications. - Mark Trapp

cmd-c, cmd-v - Andrew Dobrow

control+command+shift-4 Takes a screenshot using a selection marquee and leaves the result on the clipboard. - Chris DeSalvo

I am so going to leave it on command control option 8 for the rest of the day. - Louis Gray

Cmd-Shift-3, Cmd-Shift-4, Cntrl-Cmd-Shift-4 - Screen Captures ... - Allen Hurff

command-control-eject - Nathan Henderson

This makes Mac OSX look like Emacs... - Rishabh Mishra (p248)

If you like ^⌘⌥8, check out Nocturne: http://docs.blacktree.com/nocturn... - Amit Patel

Ctrl-Alt-Delete?? - shanebe

command control shift then spacebar=awesomeness - Bryan Thatcher from twhirl

god, i thought that said "sex keyboard shortcut." !! :o - edythe

cmd+shift+f10 - Right Click in Windows - Andrew Smith

Strongly agree on cmd-shift-4 ! - Clay B.

Ditto Paul. I have a desktop full of screen captures. How do you get those to save in a specific place anyhow? - EricaJoy

ctrl-space to open up quicksilver. the meta short cut FTW - Ivan Kirigin

Command-W (or the pinch gesture with MultiClutch) it means that I have completed something and can go on. - Lars Trieloff

It's either CTRL-CMD-D, or my custom CTRL-CMD-S (speaks my selected text). I use CMD-ALT-= quite a lot though, to switch keyboard layouts. - Paul Grav

Ctrl-Space for QuickSilver - Parth Awasthi

the power off button :-) - Thomas Hoppe

I use the 'capture' dashboard widget for screen capture. It has some additional options, like choosing how to save it (jpg,tiff,png,gif,pdf) the size (in pixels), and the quality. Pretty handy. - Robert Felty

Thanks @Amit. From the guys that do Quicksilver. Nice. (Though ^⌘⌥8 is easy, and I don't want to stay in that mode for a long time. Just enough to give my eyes a break.) - Daniel Shaw

control-alt-command-8! - Don MacAskill

Ctrl+Alr+Delete... because I NEVER HAVE TO USE IT - Pat Hawks

@edythe a typical freudian projection made by female holders of English degrees. - Zach Landes