For decades, giant big-box retailers like Walmart supercenters, Best Buy, Home Depot, Staples, Target and many others emphasized building bigger and bigger stores with broader assortments of merchandise and low prices to attract customers. But in recent years, customers pressed for time and having easy access to an extensive array of online channels are becoming frustrated with the difficulties of navigating their way through these giant retail stores, especially when they cannot find all of the items they have on their shopping lists. One study by Walmart, for example, found that an average shopper at a Walmart supercenter spends 21 minutes in the store but finds only 7 of the 10 items on her or his shopping list. There is growing concern among big-box retailers that the consumer’s desire for a convenient and efficient shopping experience could undermine the big-box retail channel in the future.