What's your keyboard of choice?
gtani: 2 other points that are important for RSI/wrist care: keep your wrist in line when you're keyboarding: top of hand in line with top of forearm, and not cocked in towards thumb or out.  This means (for me) rolling up a hand towel , put under heels of hands.Also mind your wrists when you're driving, riding bike, using power tools, stuff like that.  It's easy to cock your wrists at bad angles doing all of those and more.