Which retail loyalty program innovation from the 1890s is widely credited as the first successful example of using collectible items to drive repeat purchases?

Before digital rewards and smartphone apps dominated customer loyalty, retailers used various innovative methods to keep customers coming back. This trivia question explores a pivotal moment in the history of retail loyalty programs that fundamentally changed how merchants approached customer retention. Test your knowledge about the origins of modern retail loyalty techniques!

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S&H Green Stamps, where customers collected stamps with purchases to redeem for merchandise
Cigarette cards (trade cards) included in tobacco products that formed collectible series
Coca-Cola's first bottle cap redemption program that offered free drinks
The Great Atlantic & Pacific Tea Company's (A&P) premium coupons for kitchenware