I wish it was a coupon to print out, because traffic would go really crazy. However there is a pretty easy way (at least in theory!) to save 15% off of your overall gas spend. Given that here it is $3.45/Gallon now that is over 51 cents per gallon savings! That would help with my budget!
Ready!...Drive slower (I hear the groans).
Consumer Reports just did a pretty exhaustive survey to dig into the costs of driving faster. For example, if you drove a Toyota Camry on the highway set the cruise control at 65, then at 75, you would see that fuel economy changed. It would have been at 35 MPG then it dropped to 30 MPG, or 14.3% less! The older the car the worse it would be too.
Funny thing is last big oil crisis the government lowered the speed limit to 55, not for safety, but to save fuel! It stayed due to the safety issue.
Sure this isn't a deep thinking thing to save money "Burn More fuel=More Money" but for me it was realizing that it was nearly a 15% saving...that's real money, and can help with you personal finance!