Which retail innovation, first introduced in 1916, revolutionized inventory management by allowing customers to select their own products without clerk assistance?

The modern retail experience wasn't always as we know it today. Before certain innovations, customers relied on clerks to retrieve products from behind counters. One revolutionary concept changed shopping forever by allowing customers to browse and select items themselves. This innovation fundamentally transformed inventory management, store layouts, and the entire customer experience. Test your knowledge of this pivotal retail invention that shaped modern commerce!

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 price tagging system
Sears Roebuck's catalog ordering system
A&P's shopping cart introduction