I mentioned a few posts ago that I'd been spending all my time writing specs lately.
One side benefit is that Tommy Williams told me that Word maps the 'F4' key to the last operation you completed. If you are deleting rows from a table (Alt-A, D, R), F4 saves you a lot of keystrokes. Maybe everyone else in the world new about this (if so, why didn't you tell me?), but it was a new to me, and very useful.