The iRobot Scooba is a small automatic floor-washing machine. It is approximately 4 inches high and glides across the floor, washing it in a pattern that eventually covers the entire floor. It is a very hard working machine for one so small.

The Scooba has two tanks. You put the special cleaning solution, or vinegar, and clean water in one tank. As it glides across the floor, the Scooba puts the clean mixture on the floor, scrubs with a brush, and then vacuums the dirty water up into the second tank. The Scooba will vacuum up small debris on the floor, but you will get better results if you sweep...