+1 for a good chair. I found some guy selling Steelcase chairs out of the back of a van on Craigslist - best $200 I ever spent :) I also try to change up my ke

+1 for a good chair. I found some guy selling Steelcase chairs out of the back of a van on Craigslist - best $200 I ever spent :) I also try to change up my keyboard and mouse occasionally - esp. switching between a trackball and a mouse just for something different.