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

The way we shop today seems obvious, but it wasn't always this way! Before the early 20th century, retail stores operated very differently - clerks would fetch items for customers from behind counters. This poll explores a pivotal innovation in retail history that fundamentally changed how we shop. Test your knowledge about this revolutionary retail concept that transformed shopping from a clerk-assisted experience to the self-service model we know today.

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Piggly Wiggly's self-service grocery store
Woolworth's five-and-dime store
Sears catalog shopping
A&P's supermarket chain