Just enter your zip code in the site below, and it tells you which gas stations have the cheapest prices (and the highest) on gas in your zip code area. ! It's updated every evening. Just click on the link. You will see a map of your area and then scroll down and you will get a listing of gas prices in your area with addresses and brands starting with the cheapest and going up.
http://autos.msn.com/everyday/gasstations.aspx?zip=&src=Netx
Gas is $.20 cheaper (on the high and low end) in the suburbs
Glad I never fill up more than 1x per month. Sheesh