Changing your chair height during the day (Score 1)

I read about this somewhere (probably in a company ergonomics pamphlet or something), but the claim was that you can help alleviate a lot of repetetive stress by changing the height of your chair, or more generally, the relative height of the mouse/keyboard, throughout the day by as little as a few inches. Apparently, this changes the angle-of-attack that your wrist has to work at and decreases the perceived repetetiveness of the actions. I don't know about all the physiology behind the idea, but it certainly seems to help. I've made it a habit to raise and lower my chair from time to time and that has helped reduce the amount of pain or stiffness I build up during the day.