Here's a tip I just read on bankrate.com. They have a contest going for "frugal" tips.
Buying gas: When filling up your gas tank, try to fill up during the cooler times of the day such as early morning or later at night. Since the gas is cooler it is more condensed and you will get more gas for your money.
I never would have thought of that. :)
Here's their site: http://www.bankrate.com/nsc/news/cheap/tips_home.asp
Buying gas
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