In retail history, which payment innovation was first introduced by department stores in the early 1900s, revolutionizing how consumers could purchase goods?

The history of retail payment systems has transformed how we shop and do business. From ancient bartering to digital wallets, payment innovations have shaped commerce throughout human history. This trivia question explores a pivotal moment in retail payment evolution that forever changed the shopping experience. Test your knowledge about how merchants historically managed transactions before modern technology took over!

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Store credit cards that allowed customers to 'charge' purchases to their account
Cash registers with automatic receipt printing capability
Layaway plans that allowed customers to reserve items with a deposit
Traveler's checks that could be used instead of carrying cash