If you're looking for more gas saving tips, I found an interacative web site hosted by Arnold Schwarzenegger that promises to keep you entertained.
It has an EcoCalculator that asks a few easy questions like how many miles do you drive annually? Are you a smooth driver? Do you gun the car and go or ease into traffic. Your choices will determine how eco-friendly you are and how money you can save by being earth friendly. The governor of California promises subtle changes will result in big savings. Check it out.