Let a robot vacuum for you — this Roomba is 45% off

TL:DR: Save time and money with help from this open-box iRobot Roomba Vacuum, on sale for $149.99.Most of us don't take pleasure in cleaning. If you're not "most of us", please come clean our houses. If you're tired of constantly vacuuming or sweeping your floors, you may want a robot to do it for you so you don't have to.The Roomba from iRobot is designed for just that, complete with a Smart Mapping feature that memorizes the layout of your home, as well as where it's already been. For a limite