Which retail innovation, first introduced by Clarence Saunders in 1916, fundamentally changed how customers interacted with products and is considered the birth of modern retail shopping?

Test your knowledge about a pivotal moment in retail history that transformed how we shop. This innovation from the early 20th century revolutionized retail by introducing a concept that seems obvious today but was revolutionary at the time. Understanding this retail milestone helps product managers appreciate how fundamental changes in shopping experiences can create entirely new business models and consumer behaviors.

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Self-service grocery stores (Piggly Wiggly)
Department stores with multiple product categories
Mail-order catalog shopping
The introduction of shopping carts