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

Before big box stores and e-commerce dominated retail, innovative entrepreneurs revolutionized how people shop. This trivia question explores a pivotal moment in retail history that fundamentally changed consumer behavior and set the foundation for today's shopping experience. Test your knowledge about one of the most significant retail transformations that shaped modern commerce.

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Piggly Wiggly self-service grocery store
Marshall Field's department store catalog
Woolworth's five-and-dime model
Sears' automated checkout system