I have both a standing desk at work and a special saddle that I can sit on and use it on every chair: http://www.humantool.fi/english/ http://www.humantool.fi/e

I have both a standing desk at work and a special saddle that I can sit on and use it on every chair: http://www.humantool.fi/english/ http://www.humantool.fi/english/ The idea with the saddle is that it is so unbalanced that you have to correct your position with small movements all the time.