Today only, September 25, 2011, Woot has the iRobot Scooba Floor Washing Robot for $249.99. Shipping adds $5.

For reliably clean floors including sealed hardwood, tile, and linoleum, this floor-washing robot can handle up to four average-size rooms (250 square feet) on a single battery charge. Simple to operate, just fill the tank, press “clean,” and empty the tank when finished. Its four-stage cleaning process includes the prep stage, which picks up dirt, sand, and crumbs; the washing stage, which uses only clean solution (mops just spread around dirty water); the scrubbing stage, which removes dirt, grime, and stuck-on messes; and the drying stage, which squeegee-lifts dirty water from floors. The cleaning machine uses clean tap water, a water and vinegar mixture, or deep-cleaning, fresh-scented Clorox Scooba cleaning solution. With the press of a button, the robot will leave floors clean, dry, and ready to walk on.

In addition, the robot avoids carpets, rugs, ledges, and stairs thanks to its cliff-sensing technology. The unit conveniently self navigates throughout each room cleaning beneath cabinet edges, tables, chairs, and other hard-to-reach places. The robot’s autonomous cleaning pattern covers each area of floor an average of five times, and it washes floors with only clean solution, depositing dirty water and grime into the dirty-water tank. Accessories include one 8-ounce bottle of Clorox Scooba cleaning solution, a measuring cup, an APS battery, a power supply and charging base, and an owner’s guide. One Virtual Wall also comes included to mark off-limit areas with an infrared beam that the robot will not cross.