Which retail innovation, first implemented in 1916, revolutionized shopping by allowing customers to select their own items rather than having clerks gather products from behind counters?

Before modern e-commerce and digital payment systems, retail went through several revolutionary changes that shaped how we shop today. This poll explores a pivotal innovation from retail history that fundamentally transformed the shopping experience and set the foundation for modern retail as we know it. Test your knowledge about retail's evolutionary journey through time!

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Piggly Wiggly's self-service grocery store model
Sears Roebuck's mail-order catalog system
Marshall Field's introduction of the department store price tag
F.W. Woolworth's five-and-dime fixed pricing strategy