When running a successful retail store, you have to know your products and have a story to tell about each one of them. The way to do this is to use them and listen to people who use them. Ask your customers questions about how they use them and why they like them. Do your customers have any suggestions? You only have to know everything about approximately 25 items. Display the products in a clean and well-lit room. Remember that your customers are shrewd buyers; they will appreciate your expert recommendations and tips.