I have decided I need to hook my office chair up to the electric socket in the wall under my desk. I sit for hours, lusting after items on Ebay that I know I won't ever win, and reading mail from mail lists full of people who have such interesting lives that total strangers (me) will sit reading about what they've done instead of doing something interesting themselves. The only way to stop this madness is to hook a wire up to the electric outlet, run it through a timer set for maybe 20 minutes, then hook it up to the seat of the chair. It should work. Now I just have to find a timer on Ebay, and join an electrician's mail list to get a schematic diagram of the wiring plan. Wish me luck.