A snack is a small portion of food generally eaten between meals. Snacks come in a variety of forms including packaged snack foods and other processed foods, as well as items made from fresh ingredients at home. Traditionally, snacks are prepared from ingredients commonly available at home without a great deal of preparation. Often cold cuts, fruits, leftovers, nuts, sandwiches, and sweets are used as snacks. With the spread of convenience stores, packaged snack foods became a significant business.