Nov. 23, 2012: Michael Arrington, left, buys a Powerball ticket from cashier Lee Heilig, right, at a DeliMart convenience store in Iowa City, Iowa.
A vendor, left, receives money for a lottery purchase in New York.
A customer fills out a Powerball form at the Jayhawk Food Mart in Lawrence, Kan., Friday, Nov. 23, 2012. The jackpot for Powerball's weekend drawing has climbed to $325 million, the fourth-largest in the game's history. (AP Photo/Orlin Wagner)