Basically this is what the site lets you do: for a $30 annual fee, you buy prepaid gas cards that lock in at your current local average regular unleaded gas rate. For example, even if gas soars over $6 a gallon next year, you could still be paying $4 a gallon with a gas card you bought this year. This seems like a great deal. Can anyone vouch for it? http://www.mygallons.com