Only today did I realize that editing all day means you have to sit at a computer all day.
The sooner Minority-Report-style user interfaces get here, the better. Anyway, I think better (or more, anyway) when I'm walking around, and I'm sure there'd be creative benefit to using more than just a select few of my fingers.

The other sitting-related thing I learned today was that the sitting position least stressful on your spine is not the classic stock straight 90°, nor leaning forward, but leaning back at a very slackerly angle of of 135°! It's always nice to have your bad habits exonerated, no? So lean back y'all, lean back.

P.S.
Among the most illuminating things I've ever read:
http://www.bartleby.com/59/3.html