Milk jugs are excellent for storing plastic shopping bags (the kind you get at Wal-Mart or the grocery store). Turn a clean gallon milk jug on its side and cut a hole approx. 3-4 inches in diameter. You can then stuff many plastic sacks inside, and use the milk jug as a dispenser. The sacks are great for kids who forget their backpack, or have extra items to take home that don't fit in their backpack.