Which accidental invention from the 1940s revolutionized retail by allowing customers to see products without employee assistance, dramatically changing the self-service shopping experience?

Many revolutionary products that transformed retail began as mistakes or unexpected discoveries. This trivia question explores one such pivotal innovation that fundamentally altered the customer shopping journey and how we interact with products in stores worldwide. Test your knowledge of retail history and the serendipitous moments that shaped modern commerce!

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Automatic sliding doors
Shopping carts with child seats
Fluorescent lighting
Anti-theft security tags