Which retail innovation from the 1910s revolutionized store layouts by allowing customers to browse and select products themselves rather than requesting items from clerks behind counters?

Before the convenience of modern shopping experiences, retail store layouts underwent revolutionary changes that transformed how people shopped. In the early 20th century, one innovation fundamentally changed retail by empowering customers and increasing sales simultaneously. This poll tests your knowledge of pivotal moments in retail history that shaped today's shopping experiences and store design principles.

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

Self-service grocery stores (pioneered by Piggly Wiggly in 1916)
Department store escalators (popularized by Harrods in 1898)
Shopping basket introduction (by Safeway in 1922)
Glass storefront displays (standardized by F.W. Woolworth in 1913)