How can one create a shortcut for pasting unformatted text in Microsoft Word 2008 for Mac?
I found the answer in this blog post

Create the AppleScript:

try
  set theClip to Unicode text of (the clipboard as record)
  tell application "Microsoft Word" to tell selection to type text text theClip
end try



  Save in
  /Users/YourUserName/Documents/Microsoft
  User Data/Word Script Menu Items as
  Paste unformatted\mosV.scpt (the
  backslashed bit at the end of the
  filename provides the shortcut).
  Restart Word and you can now paste
  without importing extraneous styles
  with Apple-Alt-Shift-V.