Ever dream of setting up shop in a former Sam’s Club building? Margaret Ackermann did. She’s living large–and selling large–in a 127,000-square-foot retail space in Downey, California.

Her massive World of Decor offers oversize furnishings and accessories that probably won’t fit in your SUV. As she says in this article, customers spend hours just grazing through the eclectic collection of odds and ends, cabinetry, fountains and other big things that belong in big houses, hotels and even movie studios.

The founders of World of Decor obviously know their market. But I like their unorthodox approach to selling: salespeople don’t approach customers unless asked. It makes sense to me. World of Decor customers love to wander around without interruption. When they have a question or are ready to buy, they’ll let a salesperson know. In the meantime, sales staff can focus on the other aspects of their jobs, then close a deal when asked. This won’t work in every retail shop, but it seems to be paying off for World of Decor.

If a customer finds the same product for a lower price elsewhere, World of Decor will refund the difference–not just once, but for as long as the customer owns that product. The stores also conduct frequent auctions that the community flocks to. With free catered food and name entertainment like the Pointer Sisters, the auctions drive even more traffic into the stores’ wide aisles.

That’s a pretty good combination: freeing up salespeople until they’re needed to close a sale, lifetime price matching for customers, free events that engage the clientele. Even if your store is 127th the size of World of Decor, you can come up with ways to keep your customers coming back. Need inspiration? Read all about it.