[momokatte]

If you pair a tall shop stool with a standing desk, like the Stand2Learn desk and stool shown in the article, you don't have to stand 100% of the time and the desk doesn't have to be adjustable between a sitting and standing position.

I had this kind of setup in a drafting class in high school and a few art classes in college, and now I've spent the last 5 months with a similar setup for computer use at work and home. I probably stand 2/3 of the time and sit 1/3 of the time, and sometimes I hop up and down to really get the blood flowing or pace around when I'm frustrated with something or trying to wrap my head around an abstract concept. I feel significantly healthier these days than I did when I was sitting in a desk chair 11-14 hours a day (combined work and home).

Just as an aside, if you're going to stand and read a book or use a tablet or phone, you'll want an angled platform to avoid neck strain.