Which retail innovation, first introduced in Memphis in 1916, revolutionized shopping by allowing customers to select their own products directly from shelves?

The history of retail is filled with innovations that fundamentally changed how we shop. One particular breakthrough in the early 20th century revolutionized the customer experience by introducing self-service shopping, forever altering store layouts, customer behavior, and retail operations. This innovation eliminated the need for clerks to retrieve each item and dramatically increased the number of products a single store could offer. Test your knowledge about this pivotal moment in retail history!

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The Piggly Wiggly self-service grocery store
Sears Roebuck's catalog ordering system
Woolworth's five-and-dime store model
A&P's cash-and-carry supermarket