Grocery stores are the traditional destination for consumers looking to stock up on many of the items they use on a day-to-day basis. The need for shoppers to replenish their pantries and refrigerators typically results in frequent trips to the supermarket. For this reason, industry sales tend to be noncyclical. Competition for these dollars, though, can be intense, which helps to explain the unimpressive profit margins. Consumers typically have a variety of options to choose from when deciding where to purchase items, from competing neighborhood supermarkets to large national discount chains and warehouse stores.