The physical techniques for saving gas have been well documented here on BellaOnline and elsewhere. It is also a very good idea to use rewards cards to return some cash, you might also consider using retailers that offer a discount for customers who pay cash. I stopped at a station today that sells gas for $0.10 per gallon less if customers pay cash as opposed to credit sales, that's over 3% return on your purchase.
As far as investing there are many options for investors interested in energy stocks and energy invested mutual funds. In this way as the oil company(ies) make more money so do you. I think that people often forget that these companies are not family owned, unlike the oil rich Middle East Countries, many of which are in fact family owned.
In the end, even 10% is not really a huge savings, not when you consider that gas has gone up 30% in one year, to really save money and at the same time, the environment, we need to change a lot more than the credit cards in our wallets.
Please read my five part series on alternate fuels and technologies in the cars forum here on BellaOnline, and let me know what you think.
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Edited by WilliamCharles-Cars (12/16/07 09:52 AM)
William Charles VetterCars