Originally a seller of surplus, liquidated and returned inventory, Overstock.com is now one of the largest discount retailers, with nearly 1 million products on its site daily. Overstock discounts its merchandise as much as 70% - everything from furniture to jewelry to clothing to cars (yes, cars!) with name brands like Safavieh, Kitchen Aid, Rachael Ray, Calvin Klein Home, and Tahari. Use Overstock coupons in conjunction with everyday Overstock deals, like free shipping over $50; daily "What's Happening" sales, promotions and specials; clearance items; and "secret" email discounts.