This best-selling iRobot Roomba 620 Robotic Vacuum drops from $419.99 to $339.99 to $288.99 with code CELEBRATE at Kohls.com. You'll get free shipping and $50 in Kohl's Cash after purchase, bringing you net total to only $238.99. This is $28 over the Black Friday deal, but it's the only site we've seen any Roomba similar to this one for under $300. Plus, 87 out of 101 Kohl's reviewers have given it a perfect 5 out of 5 star rating. Sales tax is charged in most states.