eBay cuts up to 64% off a selection of new, open-box, and refurbished vacuums, steam mops, and accessories during its Vacuum Event. (The banner notes up to 50% off, but we found even better discounts.) Plus, all items qualify for free shipping. Prices start from $14.99. Choose from brands such as Dyson, Dirt Devil, and Hoover. Some best bets: Check the individual product pages for warranty information on refurbished and used items.