In Michigan bottles and cans of pop and beer or other carbonated beverages can be returned for 10 cents each at any local grocery store. It is the highest "bottle deposit" in the country. People in Michigan usually collect all their empty cans or bottles and when they are broke return them to the store to buy more beer.
Person 1: "Dude the party is over, we are all out of bud light and cash.."
Person 2: "Nah man, we can just return the cans I have been saving these past two weeks as my Michigan Beer Fund. we can get another 12 pack!"