Do you have minimized windows that you'd like to expand -- without resorting to mousing down to the Dock or using the Control-F3 "move focus to the Dock" keyboard control option? Here's a shortcut.
Say you've got Safari running, and its one window has been minimized. If you're currently working in another program, press Command-Tab until Safari is selected, but don't release the Command key yet. Now press and hold Option, and release Command (you can then release Option after release Command) -- the minimized window will free itself from the Dock when you release Command while holding Option.
[robg adds: In my testing, this only worked when the program with the minimized window had no other open windows. Also, if there's more than one window minimized to the Dock, only the newest window will expand out--at least with Safari, Mail, and Camino; note that it doesn't seem to work with the Finder (and perhaps other apps). Finally, it doesn't work at all in 10.4 that I can see.]
Mac OS X Hints
http://hints.macworld.com/article.php?story=20080218191436544