Piggly Wiggly is an American supermarket chain operating in the American Southern and Midwestern regions run by Piggly Wiggly, LLC, an affiliate of C&S Wholesale Grocers. Its first outlet opened in 1916 in Memphis, Tennessee, and is notable for having been the first true self-service grocery store, and the originator of various familiar supermarket features such as checkout stands, individual item price marking and shopping carts. The current company headquarters is in Keene, New Hampshire. A total of 499 independently owned Piggly Wiggly stores currently operate across 18 states, primarily in smaller cities and towns. History Piggly Wiggly was the first self-service grocery store. It was founded on September 6, 1916 (although it did not open until five days later due to delays in construction), at 79 Jefferson Avenue in Memphis, Tennessee, by Clarence Saunders. A replica of the original store has been constructed in the Memphis Pink Palace Museum and Planetarium, a mansion that Saunders built as his private residence, which was later sold to the city. At the time of its founding, grocery stores did not allow customers to gather their goods. Instead, a customer would give a list of items to a clerk, who would then collect them throughout the store. This created greater costs and higher prices. Piggly Wiggly introduced the innovation of allowing customers to go through the store, gathering their goods, thus cutting costs and lowering prices. Losses due to easier shoplifting were more than offset by profits from increased impulse purchasing. Others were initially experimenting with this format, which came to be known as a "groceteria", reminding people of cafeterias, another relatively new, self-service idea. Piggly Wiggly Corporation secured the self-service format and issued franchises to hundreds of grocery retailers to operate its stores. The concept of the "self-serving store" was patented by Saunders in 1917. Customers at Piggly Wiggly entered the store through a turnstile and walked through four aisles to view the 605 items sold in packages and organized into departments. The customers selected merchandise as they continued through the maze to the cashier. Instantly, packaging and brand recognition became important to companies and consumers alike. In 1937, Piggly Wiggly became the first company to provide shopping carts for customers, in their Oklahoma branch; they were also the first company to use Point of sale lanes for payment. The success of Piggly Wiggly was phenomenal, and other independent and chain grocery