Which retail innovation was first introduced by Piggly Wiggly in 1916, revolutionizing how customers interacted with products and dramatically changing store layouts worldwide?

Throughout history, certain retail innovations have fundamentally transformed how consumers shop. These breakthroughs in retail technology and methodology have shaped modern commerce and consumer behavior in ways that continue to impact today's product strategies. Test your knowledge of these pivotal moments in retail history that created entirely new shopping paradigms.

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Self-checkout kiosks
Self-service shopping (allowing customers to select their own merchandise without clerk assistance)
Shopping carts with wheels
Barcode scanning at checkout