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

Before supermarkets became the standard shopping experience, a revolutionary retail concept changed how customers interacted with products forever. This innovation from the early 20th century fundamentally transformed shopping from a clerk-assisted experience to the self-service model we know today. Test your knowledge about this pivotal moment in retail history that shaped modern commerce.

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Piggly Wiggly's self-service store concept
Woolworth's 5-and-10-cent stores
Sears Roebuck's mail-order catalog system
A&P's economy store format