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

The history of retail has seen remarkable innovations that transformed how people shop. From ancient marketplaces to modern digital commerce, retail innovations have shaped economies and cultures throughout human history. Test your knowledge about a groundbreaking retail innovation that changed shopping forever and reflected significant shifts in consumer society.

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Self-service shopping (Piggly Wiggly stores)
Department store credit cards
Barcode scanning technology
Shopping mall concept