Which military retail innovation from WWII is credited with revolutionizing modern product packaging and is now standard in e-commerce shipping worldwide?

The intersection of military history and retail innovation has shaped American consumer culture in surprising ways. One of the most enduring retail concepts emerged directly from military surplus distribution after major conflicts. These stores pioneered many retail concepts we take for granted today, from standardized sizing to durable packaging innovations that would later influence civilian retail. Test your knowledge about how military retail concepts transformed the American shopping experience!

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Corrugated cardboard boxes with interlocking tabs (V-boxes)
Vacuum-sealed ration packaging
Waxed canvas equipment bags
Ammunition crates with stenciled inventory codes