At Kmart, buy one pair of men's, women's, or kids' shoes and get a second pair for $1. Choose in-store pickup to avoid shipping fees (which start around $6), or get free shipping on orders of $49 or more. That's the best multi-buy deal we've seen on shoes from Kmart since Black Friday, which saw the same offer but with no-minimum free shipping. Some exclusions apply. Deal ends May 27.