I have had the good fortune to be able to obtain a standing desk in my office, which means that I don't spend all day sitting on my backside as I work. I would highly encourage anyone to see what they can rig up to do the same, if at all practical. Honestly, I can't imagine going back to spending the day sitting ever again.

I found a little calculator that shows how many calories you'd burn if you stood rather than sat:

http://www.juststand.org/tabid/637/language/en-US/default.aspx

For me, I think I burn even more, because I don't stand still. I move about a fair amount behind my desk.

I also got a standing desk

I would get one but I'm a contractor who changes contracts pretty often. I'm in talks of going full time so maybe it will be a possibility in the future.

I want one of these

I stand (and walk and bend and reach) for 7 hours a day.
According to that I guess I should be eating more.
I guess...