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From the Oct, 1937 issue of Popular Science, a motorized toothbrush "designed to allow the late riser to get his teeth brushed while he shaves." I don't even shave, but I would use this every day if it were in the market.
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I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.