Our favorite robot vacuum of all time is great for pet hair--and it just got a major price cut

Purchases you make through our links may earn us a commission. When it comes to robot vacuums, there's no better machine on the market than the iRobot Roomba i7 . It costs a whopping $799.99--gulp. If shelling out $800 on a cleaning tool isn't in your budget, take heart: This stellar device is currently on sale for a massive discount. Get expert shopping advice delivered to your phone.