Which military merchandising innovation from World War II permanently changed retail pricing strategies across America?

Throughout history, military organizations have influenced retail strategies and brand management in fascinating ways. From recruitment merchandise to war bonds, military institutions have employed sophisticated marketing approaches that shaped consumer behavior. This poll tests your knowledge of how military history intersects with retail innovation and brand strategy across different eras.

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The introduction of military surplus stores with standardized pricing across regions
The psychological pricing tactic of prices ending in .99 cents to make items seem more affordable
The implementation of payroll deduction for war bonds, which later evolved into retail installment plans
The first use of celebrity endorsements by having famous generals promote civilian products