Which retail innovation, first implemented in 1916, revolutionized shopping by allowing customers to select their own merchandise without clerk assistance and is considered the foundation of modern supermarkets?

The way we shop today seems intuitive, but the modern retail experience was shaped by revolutionary inventions and discoveries. One of the most transformative shifts in retail history was the invention of self-service shopping—a concept that fundamentally changed how consumers interact with products and make purchasing decisions. Test your knowledge about this pivotal retail innovation that set the foundation for today's shopping experience!

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Piggly Wiggly's self-service store concept
Sears Roebuck's mail-order catalog system
Woolworth's five-and-dime price standardization
Marshall Field's department store layout