Which retail innovation, first introduced in 1916, fundamentally changed shopping by allowing customers to select their own merchandise without clerk assistance?

Before Amazon and Walmart dominated the retail landscape, other pioneers revolutionized how we shop. This trivia question explores a pivotal moment in retail history that transformed the shopping experience and set the foundation for modern retail strategies. Test your knowledge about an innovation that changed customer behavior forever and continues to influence retail design to this day.

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Self-service grocery stores (Piggly Wiggly)
Department store catalogs (Sears Roebuck)
Shopping malls with multiple retailers
Charge cards for credit purchasing