Sitting Too Much?

As one who sits a great deal @ work in front of a computer, often reads sitting, watches television, and who writes blogs, I do more than my share of sitting. Alas, it's a bad practice in excess. However, as I write this,I'm standing up. As a temporary fix, I've simply piled some books (of which I have a few, delightfully fat and therefore appropriate for this ancillary use) to build a platform upon which to rest my computer. One project that I've begun looking into is some type of podium or platform to allow standing reading and writing at work and at home (think Bob Crachitt). Nothing yet, but I'm on the lookout. As the link suggests, the sooner the better!