If you've been craving some help with cleaning, this Memorial Day Roomba sale may be up your alley. The machine not only cleans floors and carpets; its redesigned dock can automatically empty debris and refill it with mopping liquid. Use the exclusive code ENG425 to get iRobot's top-of-the-line combo cleaner for 974. The Roomba Combo J9 has an upgraded motor and a four-stage cleaning system that takes multiple passes across your floors and carpets. This latest model, which arrived only last fall, has dual rubber brushes for optimal suction and pressurized scrubbing.

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. Take 400 off the vacuum-mop hybrid. The Combo J9, Engadget's pick for the best vacuuming-mopping robot, has an upgraded motor and four-stage cleaning system that takes multiple pass-throughs across your carpets and floors. This version also adds dual rubber brushes for better suction and pressurized scrubbing. Its motor automatically lifts the mop pads when it reaches carpets and rugs to help keep them dry.