Which retail innovation, first introduced in 1916, revolutionized shopping by allowing customers to select their own merchandise instead of requesting items from clerks behind counters?

The retail landscape has transformed dramatically over centuries, with innovations reshaping how people shop. One of the most significant developments in retail history changed the fundamental customer experience from clerk-assisted to self-service shopping. This revolution altered store layouts, customer behavior, and eventually led to modern supermarkets and department stores. Test your knowledge about this pivotal moment in retail history that continues to influence shopping habits today.

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Piggly Wiggly's self-service grocery store model
Selfridge's open display merchandising system
Woolworth's five-and-dime pricing strategy
Marshall Field's customer service guarantee