Probably sounds bizarre, but when I was setting up my home office, I didn't really have time to go out and look for chairs. I decided just to use a $10 stool until I could find a chair that I really liked. 2 years later, I love the stool :-) I have to think about posture, but I'm convinced that the complete lack of support has helped strengthen my core. I don't really want to go back to a normal chair.