Lol, It's all in the sig, I basically relearnt how to drive. by using some techniques I was able to find on that site, I was able to go from 20 mpg average up to where I am right now. www.cleanmpg.com. You wont believe the numbers to begin with, until you see them yourself.  just start simple and then work your way up. you can actually start here:
http://www.cleanmpg.com/forums/showthread.php?t=1510

oh look, I think mine just went up from 28 - 29, heheh.