KeyTraino is a tiny and super useful utility.
KeyTraino knows all the keystrokes for all the applications you use.
KeyTraino knows all about the office suite, many business applications, many development tools (even query analyzer!)
When you use the toolbar, the menus or the context-menus of an application, KeyTraino shows the alternative keystroke you could've used.
So, what's KeyTraino for VS2005?
It's part of a selection of Gadgets from SlickEdit for VS2005 to make your IDE editing, well, slicker. SlickEdit calls their gadget Command Spy. The other gadgets are cool too.
And best of all, they're free.
UPDATE: I had the wrong product here. Key Traino is not the SlickEdit product. It's Command Spy.