Wellbots is offering multiple of iRobot's Roomba Combo vacuum and mop machines for 40 percent off, and in one case, over 50 percent off as an early President's Day sale. You can even get the new Roomba Combo 10 Max and its Autowash Dock, which can empty and cleans your robot, for 789, around 410 off its normal 1,199 price. That's a good bit cheaper than the last time it was on sale. Save 410 with Engadget code ENGAD410. The Roomba Combo 10 Max Autowash Dock is a newer addition to iRobot's lineup, and an important one.

The (deep breath) Roomba Combo 10 Max Robot AutoWash Dock automatically washes and dries the mopping pad, something you had to do manually on all its previous combo vacs. But at 1,399, many customers will want to wait several generations for the feature to trickle down to models that don't cost nearly the equivalent of a MacBook Pro. Cleaning robots exist to automate tasks that are a pain for us, and the Roomba Combo 10 Max Robot expands on that. You can manually run self-cleaning, and its companion app will remind you when it's time for standard maintenance or a deeper cleaning. The robot can store dirt and debris for up to 60 days before emptying, and the mopping pad and self-cleaning tank hold up to seven days of water.