Today’s Woot! deal is perhaps the most successful example of personal robotics to date, the iRobot Roomba 530 Robotic Vacuum. The Roomba 530 includes Virtual Wall support which allows you to set boundaries on where it will roam. Woot! is selling these refurbished Roomba 530s for only $159.99 + $5 S&H. New the MSRP was $299.99. and Amazon still lists them for $275.99. So this is a pretty good deal if you’ve got rugs & carpets to keep clean, and you aren’t a fan of vacuuming.