Typing in a window while Dashboard is active:
Occasionally, I need some info from a widget that I can't copy/paste into an active window. So, rather than open Dashboard, remember some text, activate the window, type, activate Dashboard, etc. try this:
Click in the form in the window where you'd like to type.
Activate Dashboard.
Get the widget info you want displayed.
With Dashboard still activated hit Command+Space to activate Spotlight.
Hit Command+Space again to deactivate Spotlight.
Now you're back in the original window/text field with Dashboard still activated.
Start typing.
Run the maintenance scripts without having to download Onyx
Open Terminal.
Type: sudo sh /etc/Daily to run the Daily maintenance script.
Replace "Daily" with "Weekly" or "Monthly" to run the respective scripts.
It's caps sensitive, so be wary of that.
"Move" and "Copy" drag
Hold down the Option key while dragging to copy a file.
Hold down the Command key while dragging to copy a file and delete the original (move).
Quick Sleep
Command+Option+Eject will sleep the computer without having to navigate any menus or shut the lid on portables.
Hide all apps
Command+Option+click the desktop to hide all open apps.
Open certain folders quickly
With Finder activated, hit Command+Shift+A to open the Applications folder. Replace "A" with "U" for utilities or "H" for the Home folder.
Drop files on dock apps to "Open with..."
If you'd like to open a file with a program other than the default, simply drop it onto a dock icon. Great for images that would normally open with Preview, but you'd like to view them in Photoshop. (Good for HTML, as well)