What retail innovation, introduced in 1916 by Clarence Saunders, revolutionized shopping by allowing customers to select their own merchandise rather than requesting items from clerks behind counters?

The history of retail has shaped how we shop today. From ancient marketplaces to modern megastores, retail evolution reflects changing societies and technologies. This trivia question focuses on a pivotal moment in retail history that fundamentally changed the shopping experience and set standards for modern retail operations. Test your knowledge about this revolutionary development that transformed how consumers interact with products and brands.

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The Piggly Wiggly self-service grocery store
The Marshall Field's department store credit card
The Macy's holiday window display tradition
The Sears mail-order catalog distribution system