Which retail innovation, first implemented in 1916 at the Piggly Wiggly store in Memphis, Tennessee, fundamentally changed shopping by allowing customers to select their own merchandise without clerk assistance?

Step back in time to explore a pivotal innovation that transformed retail history and shaped our modern shopping experience. This question examines how technological advancements in the early 20th century revolutionized retail operations, creating efficiency and expanding possibilities for both merchants and consumers. Test your knowledge of retail history and the ingenious solutions that built today's shopping landscape!

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Self-checkout kiosks
Self-service shopping (customers selecting their own products from shelves)
Barcode scanning system
Shopping cart introduction