It pays to be friends with those who can get you an inside deal, especially Big Lots this weekend. The discount chain is holding its Friends & Family Day on Sunday, July 13, with 20% off an entire purchase. The discount requires this printable coupon. The typical exclusions apply, including alcohol, gift cards, phone cards, etc. — see coupon for complete details. To accommodate the expected crowds, the store is extending its hours to 10 p.m. for the day at most stores. For locations, click here.