I originally posted this at http://www.318.com/TechJournal
When you’re active application is the Finder then check out these shortcuts:
Command-N opens a new finder window
Command-Shift-N creates a new folder in the active folder of your finder
Command-W closes a window
Command-Shift-W closes all the windows (if you have more than one open)
Command-Shift-Escape
Command-E ejects a disk or mounted volume
Command-Tab switches to the previous application
Command-Shift-Tab switch to the next application
Command-Shift-Delete trashes an item
Command-Shift-Option-Delete empties the trash without a warning dialog
