Accurate to within 4hrs, this map color-codes gas prices for the entire US, allowing you to find the least-pricey station in your 'hood, or determine whether a move to Gilette, Utah is worth the modest fuel savings ("$3.42 a gallon. No beer. $3.42 a gallon. Become buddies with Merlin Olsen?").
You Can Take a $213 Train Ride Across America