Which retail innovation did Harry Gordon Selfridge first introduce to London department stores in the early 1900s that revolutionized shopping psychology?

Throughout history, department stores transformed how people shop and helped shape modern retail culture. These iconic establishments pioneered many practices we take for granted today, from fixed pricing to seasonal sales. This poll tests your knowledge about one of the most influential historical retail innovations that changed consumer behavior forever. Do you know your retail history?

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Placing perfume and cosmetics at the store entrance to create a sensory experience
Introducing the escalator as the central feature of the shopping floor
Creating the first branded shopping bags with store logos
Implementing the first point-of-sale loyalty card program