Which retail innovation was first introduced by Piggly Wiggly in 1916, fundamentally changing how customers interact with products?

Test your knowledge about the evolution of retail! The history of shopping contains fascinating innovations that shaped how we buy products today. This question explores a pivotal moment in retail history that revolutionized the consumer experience and established practices we now take for granted. Do you know your retail pioneers?

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Self-checkout kiosks
Self-service shopping (allowing customers to select their own items rather than requesting them from clerks)
Shopping carts (replacing hand baskets)
Price tags on individual items