Sam's Club is a chain of membership-only retail warehouse clubs owned and operated by Wal-Mart Stores, Inc., founded 1983 and named after Wal-Mart founder Sam Walton. As of January 31, 2009 (2009 -01-31), the Sam's Club chain operated in 48 of the 50 U.S. States,[1] and, as of 2008[update]...