www.hersheys.com/gasgiveaway to play once daily. There's a winner every hour --- a total of 1, 344 instant win prizes over the course of the instant win game. The prize up for grabs - gas money - will be given in the form of an $80 Visa Gift Card, which you can use to fuel up. One prize per household.
This game, which began 7/2, runs through 8/27, so there's lots of chances to win. Let me know if you win!