Wanna save gas?

In my opinion the best way to save gas is:

1. Run your car as effeciently as possible. (Better breathing is a great start: exhaust AND intake.)
2. Keep your RPMs low.
3. Keep fuel system clean. (Replace fuel filter on a regular basis, keep injectors clean.)
4. Properly inflate your tires.

You can follow this link for their list, but I don't agree with all of it:
http://money.cnn.com/2008/05/12/autos/ways_to_not_save_gas/index.htm?section=money_topstories