Which retail innovation, first introduced by Piggly Wiggly in 1916, fundamentally transformed food shopping and remains the dominant model for grocery stores worldwide?

The food retail landscape has transformed dramatically over the decades, with innovative strategies reshaping how consumers access and purchase food products. Behind today's seamless omnichannel grocery experiences lies a fascinating history of retail innovation. This trivia question explores a pivotal moment in food retail history that revolutionized how customers interact with food products and set the foundation for modern grocery shopping experiences.

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

Self-service shopping (allowing customers to select their own products rather than requesting items from clerks)
The introduction of shopping carts with wheels
Checkout scanners for product barcodes
The loyalty card program for repeat customers