I grabbed a Road & Track today for reading while traveling, and page 103 has an interesting article called "Saving Fuel - And Still Having Fun", which seemed to be the whole theme of the mag. It was a good read on various real and bogus ways to help MPG. This paragraph was interesting:
In routine acceleration, a fairly heavy foot and short shifting reduce pumping and throttling losses. Given that traffic allows it, this can save as much as 20 percent in city/suburban driving. Plus, it's fun to practice.
This validates mine and many of our discoveries that aggressive driving really doesn't hinder MPG as compared to grandma driving.
The article also had a good link with scientifically-proven data on products/methods that supposedly improve MPG:
Good, Better, Best: How to Improve Gas Mileage