This new ergoergo stool is now my throne of choice! Unlike a yoga ball (which didn't work for me :( I can now rock around and enjoy a minor core workout while keeping a healthy spine. I discovered these at the container store! So happy. After I started to learn programming, it was super hard to sit all day long. This does the trick for me.
[The above is a Amazon link, your purchase will help me with my programming quest. I can hence then keep this blog updated with the excitement of Silicon Valley. True to today, I just found this wonderful stool and I am using it :) If you want to request a picture of me :P comment!]