If you’re looking to automate more of your home cleaning setup, iRobot’s flagship Roomba Combo J9+ is on sale for $400 off. The vacuum-mop hybrid robot, which only arrived last fall, has a redesigned dock that automatically empties debris and refills the device’s mopping liquid. Usually $1,399, Wellbots has the Roomba Combo J9+ for $999 with coupon code ENGA400. The Combo J9+, Engadget’s pick for the best vacuuming-mopping robot, has an upgraded motor and four-stage cleaning system that takes... Read this story