I have been using AutoHotkey to do keyboard remapping for more than a year now. It has given me a very significant improvement in typing speed, but more importantly less strain in my fingers.
I do the following remappings:
I don't necessarily expect that everyone will find these remappings useful, but I expect that everyone could benefit from some remappings.
I made the entire numpad the boss key (show desktop). :-D
I have often benefited from recommendations for Things I Didn't Know I Wanted.
Given that Less Wrong is a community of unusually intelligent, critical, and self-improvement-focused people, I suspect we can generate a pretty helpful thread of product recommendations — perhaps even a monthly thread of product recommendations.
Rules: