Pet stores often sell a variety of bulk pet treats by the pound from open canisters. The advantage to purchasing these treats over packaged treats is that you the customer can see what is being purchased. It is important to buy only those treats that will be used quickly, however, because treats left in the open air may go stale more quickly than those treats that are protected by packages.
In addition to prescription pet food, many pet stores sell specialty pet foods. Such specialty foods include loaf-style pet foods (sometimes called rollover), frozen pet foods, and nonprescription foods for dogs with sensitive digestive systems or with for dogs with weight problems or coat problems--or even for dogs on vegetarian diets.