Since we travel so much we are very conscious of fuel prices. We have seen the price vary as much as 33 cents per gallon in the same town on the same day.
Therefore, we always check prices along our route by checking out this website: http://autos.msn.com scroll down the right side and click on "Gas Prices" - put in the name of the town and it will show you how much fuel is at a variety of stations.
So the local station you have been going to for years and years might not be the least costly. Is it worth bit of your time to find several cents off?