Which packaging innovation, first successfully commercialized in the 1950s, dramatically transformed retail by enabling self-service shopping and is credited with changing consumer purchasing patterns forever?

Throughout history, packaging design has evolved dramatically, transforming how products are preserved, marketed, and consumed. One particular packaging innovation from the 20th century revolutionized consumer behavior and retail strategies worldwide. Test your knowledge about this pivotal development in retail history that we now take for granted but was once considered revolutionary.

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Cellophane transparent wrapping
The aluminum beverage can
The barcode system on packaging
The plastic shopping bag with handles