stop and go is the best way to get great gas mileage. the only problem is you have to do it without using the brakes so you either need to know exaclty where and when you will stop or drive where there is no traffic.
Basicaly my car gets about 44mpg at 60mph (it's auto trans) but if i accelerate from a stop to let's say 30mph and let the car come to a dead stop without using the brakes i get about 60mpg so if i repeat that process all the time i would get 60mpg all the time. now, try doing that on the way to work