Which retail innovation, introduced by Clarence Saunders in 1916, fundamentally changed how consumers shopped by allowing them to select their own items rather than having clerks gather products for them?

The retail industry has transformed dramatically over the centuries, with various innovations reshaping how consumers shop. One particular invention revolutionized the entire shopping experience in the early 20th century. Test your knowledge about this pivotal moment in retail history that changed consumer behavior forever and set the foundation for modern shopping experiences we take for granted today.

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

The self-service grocery store (Piggly Wiggly)
The shopping cart (introduced by Sylvan Goldman)
The barcode scanner (invented by IBM)
The department store credit card (pioneered by Sears)