The Deal: $15 off $350 at Overstock.com
The Lowdown: As coupons go, Overstock tends to be on the low-end (4%??), which at first made us totally ignore the online shopping outlet. Then we learned about how Overstock gets its merchandise (via the same opportunistic shopping methods used by Marshalls/TJ Maxx), which allows the store to offer goods at already super low prices (and explains the low additional discount). Now $350 is a lot of cash, but because you can literally buy everything at Overstock (from textbooks to picnic tables to Prada), you could easily rack up that amount. We say, use the discount to purchase things for yourself, your kids and for your hubby/partner.