iRobot S390020 iRobot Scooba 390 Floor Scrubbing Robot for $399.99. Shipping is $5.00 for a total of $404.99 shipped. Here is a screenshot for reference. It cleans up to 450SF on a single battery charge and uses a 4-stage cleaning system to prep, wash, scrub and squeegee sealed hardwood, tile and linoleum floors.  Most places [...]