Which retail innovation, first introduced in the 1910s, revolutionized shopping by allowing customers to select their own products without clerk assistance?

Before department stores and online shopping, retail looked very different. This poll explores a pivotal moment in retail history that transformed how consumers interacted with products and brands. Test your knowledge about one of the most significant innovations in retail history that laid the groundwork for modern shopping experiences and revolutionized product accessibility.

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Self-service grocery stores (Piggly Wiggly)
Mail-order catalogs (Sears Roebuck)
Department store shopping (Macy's)
Vending machines (Horn & Hardart Automat)