EDIT: Website is offline now.
This is a good reference for keyboard shortcuts. Why? What's so special about it?
Well, it is very carefully illustrated and sized well for printing then taping to a shelf or lamp near one's workstation. Of course, this would be even more useful to anyone new to the World of Windows and PC's, particularly if they want a document written in Spanish. (I don't know if the same keyboard shortcuts are applicable for Mac OS, though). There's a nice explanation about the Alt-Gr key, otherwise known to me as Alt- |, and a bit of history about the different key placement for European versus North American market. The Gr in Alt-Gr meant "Graphics", fyi.
The post covers these combo's, and don't give me a hard time for my choice of notation!
Alt + x
Windows symbol + x
Shift + x
Alt-Gr + x , or Alt-Shift -\ + x
for West of the Atlantic users Function keys
Ctrl + x
Personally, I try to avoid keyboard shortcuts, as they remind me of Emacs and WordPerfect, neither of which were bad, just indicate that I'm getting a little long in the tooth. However it is good to have the info handy, as one sometimes gets stuck in an application where an expected function is not offered on the pull down menus, and use of the keyboard shortcut is the only choice.