Commissaries save military families a lot of dough on groceries. In fact, shoppers save an average of more than 30 percent when compared to commercial prices. When shopping regularly at the commissary, that amounts to thousands of dollars saved annually. The Defense Commissary Agency (DeCA) offers authorized patrons items at cost, plus a 5 percent surcharge, which covers the costs of building new commissaries and modernizing existing ones.

Commissaries are located at installations worldwide.