Which innovative retail concept, first introduced in 1916, fundamentally changed shopping by allowing customers to select products themselves rather than asking clerks behind counters?

The early 20th century saw a dramatic transformation in how consumers interacted with products. One retail innovation fundamentally changed shopping forever, setting the foundation for modern supermarkets and big-box stores. This poll tests your knowledge of this pivotal retail strategy that revolutionized consumer behavior and product marketing approaches.

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Piggly Wiggly's self-service grocery store model
Woolworth's department store layout
Sears Roebuck's mail-order catalog system
A&P's chain store standardization