Time

I have an electric toothbrush that indicates how long I should continue to brush. It pauses briefly every thirty seconds; then at the end of two minutes its motor stutters to tell me I've done enough. I do this twice a day, and this morning I realized for the first time that every two weeks I'm spending an hour brushing my teeth, or, to put it in a more depressing way, every year I spend an entire day--24 hours--doing nothing but standing in front of a sink with a toothbrush in my mouth. Maybe I should spend less time brushing. Wouldn't regaining half a day be worth two or three more hours in the dentist's chair?
     This train of thought is much too gloomy to pursue. How much time waiting for lights to turn green? Washing coffee cups? Buttoning, unbuttoning, or trying to get the damned bottom parts of the zipper engaged?