if I was spending a lot of time in my home desk chair, I'd probably still get a leap, and then just cover it if I had cats. Back pain sucks. As it is, I have a decent office max chair I spent $75 on and it works for the hour a week I'm in it.
http://www.tor.com/stories/2014/05/unlocked-an-oral-history-of-hadens-syndrome-john-scalzi
Holy crap John Scalzi has come up with an interesting idea. I just binge read the novella because I want to start listening to the audio book of the novel on my way into work.