In the latest edition of Cool Tools, James Tierney reviews a $10 floor cleaner called the RoboMaid that looks a little like a Roomba.
Robomaid is a low tech, very cheap version of Roomba cleaner. It doesn't clean rugs, but has done a great job on our wood, tile, and stone floors. The design is wonderful in its elegance: a powered ball propelling a sweeping "hat". Like Roomba it cleans along walls, under tables and desks, and in corners where it would be difficult to clean otherwise. It uses no intelligence, so it randomly changes direction, but is surprisingly thorough. Especially since I don't care how long it takes.
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