Which retail innovation emerged during WWII as a direct result of military supply chain needs that later revolutionized civilian shopping?

Military history isn't just about battles and weapons—it's also about how warfare transformed retail and commerce. During major conflicts, retail strategies had to adapt dramatically to support war efforts, creating innovations we still use today. This poll explores how military necessity drove retail innovation during World War II, when rationing, manufacturing shifts, and consumer behavior changed dramatically.

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Self-service supermarkets with shopping carts
Standardized product packaging with barcodes
Palletized warehouse systems with forklifts
Catalog shopping with home delivery