This vacuum is a similar idea to the iRobot Roomba with a lower price tag.
Brad's Deals Editor Nicole,
Get this Black & Decker Robotic Vacuum, regularly $299.99, for $196 at Walmart.com, plus it ships free. This is the best price we could find on this machine. It works on both hard floors and carpet and has a docking station for recharging. There is a sensor for cliff detection. You can choose from three cleaning modes. Sales tax is charged in most states.