Piggly Wiggly self-service grocery store logoThe world’s first self-service grocery store, Piggly Wiggly, opened in Memphis Tennesee. Clarence Saunders, the founder of Piggly Wiggly, claimed to be the first to give shoppers “better value through high volume and low profit margin food retailing”. At Piggly Wiggly they price-marked every item, provided check-outs where customers paid for their goods, put employees in uniforms and franchised independent grocers to operate self-service grocery stores. There are still more than 600 Piggly Wiggly stores operating in theUnited States.