Helpful Mac OS X tips

Now that I've joined a team of full on Railers who all develop on Macs, I've had to jump in to the Mac OS X environment with both feet. After just staring at my Macbook for about a good 30 minutes when I first got it, I quickly had to adapt my old windows habits and shortcuts to my new Mac environment. This is mostly inspired by a recent post at Juixe TechKnow about the Mac OS X F11 key. So here's my list, feel free to add on...

press F11 - is like "Show Desktop" in Windows. It moves all windows out of the way. Pressing it again brings the windows back.

press F12 - Shows you your widgets(proper name?). I still have the defaults on mine which are the Calculator, Weather, Clock and Calendar.

press F10 - Tiles the windows of whatever program you have open. For example, if you have 4 FireFox windows open because you detest tabs, pressing F10 will tile them for you.

press F9 - Tiles all of your non-minimized windows.

press Apple+Shift+(Number 4) - All together - Changes your cursor into a little target looking icon which you can click and drag to create a screenshot of the area you selected. The screenshot gets saved to your desktop with a name like "Picture 1.png". Awesome.

Terminal Tip - while in Terminal, you don't even have to fully type out your directory or file names. Just type the first few letters and hit tab and if that file is the only one with that name, it will fill it in for you. for example, if you're in the root of your rails app, my-awesome-computer:~/desktop/appz/rails4life and you type in 'scr' and then hit the tab key, you get script. Then type 'se' and hit tab and you get 'server'.

Textmate - Best text editor ever. My tip? Use it.

So those are the tips I've found handy so far. Anything else I should know about?