Which retail innovation, first introduced in 1916, revolutionized shopping by allowing customers to select their own merchandise without clerk assistance, creating the foundation for modern supermarkets?

The retail landscape has undergone numerous transformations throughout history, with certain innovations fundamentally changing how we shop. One of the most significant retail design breakthroughs occurred in the early 20th century, forever altering the customer experience and store layouts worldwide. This poll tests your knowledge of retail innovation history and how certain design concepts revolutionized shopping as we know it today.

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Piggly Wiggly's self-service shopping format
Sears Roebuck's catalog showroom model
Woolworth's five-and-dime counter service
Marshall Field's department store open display concept