Which retail innovation, introduced in 1916, fundamentally changed shopping by allowing customers to select their own merchandise without clerk assistance for the first time?

The retail landscape has transformed dramatically throughout history, with innovations that forever changed how people shop. This poll tests your knowledge about a pivotal moment in retail history that revolutionized the consumer experience and established practices still fundamental to modern shopping. Can you identify the correct historical retail innovation that shaped today's shopping experience?

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Piggly Wiggly's self-service grocery store model
Woolworth's introduction of price tags on merchandise
Marshall Field's money-back guarantee policy
Sears Roebuck's first mail-order catalog