Which retail innovation, first implemented by Clarence Saunders in 1916, fundamentally changed how consumers shopped and is credited with creating the modern grocery store experience?

Throughout history, retail strategies and consumer products have evolved dramatically, transforming how people shop and what they purchase. The 19th and 20th centuries saw particularly revolutionary changes in retail that still influence our shopping experiences today. Test your knowledge about a pivotal innovation that changed retail history forever!

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Self-service shopping (Piggly Wiggly stores)
Department store layout (Macy's model)
Mail-order catalogs (Sears Roebuck approach)
Price tags with fixed pricing (Wanamaker method)