Which retail innovation, introduced by Clarence Saunders in 1916, fundamentally changed how customers shopped by allowing them to select their own items rather than having clerks gather products for them?

Test your knowledge about one of the most significant innovations in retail history that transformed how customers shopped and permanently changed the consumer landscape. This development revolutionized the shopping experience in the early 20th century and laid the foundation for modern retail concepts we take for granted today.

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• The shopping cart (invented by Sylvan Goldman)
• The self-service grocery store (Piggly Wiggly)
• The department store credit card (Sears)
• The checkout counter barcode scanner (IBM)

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