[joey]

If your ultimate goal is spending less (money on) fuel (and not simply scoring high mpg numbers), there is no better hypermiling technique than not driving at all. Someone getting 10 mpg and driving 100 miles a month still spends less, both in fuel and money on fuel, than someone getting 50 mpg and driving 1000 miles a month.

So if you really want to save money, gas, or both, find ways to do what you need without using your personal fuel. For me, that's cycling. I haven't driven since June 2nd, yet I've covered 150 miles in trips to work, groceries, errands, and plain fun rides. Even if my car got 150 mpg, it would still have cost me more to drive it than it's cost to ride.

Like DifferentPointofView, I would also be interested in a signature reflecting fuel spent, as it's much more interesting for me to read of people's efforts to absolve themselves of fossil fuels than to merely travel farther with them.

As someone else's signature here says, even if every car on the road were replaced with a Prius tomorrow, 99% of the essential problems with car-based transportation would still be present--including the 45,000 people who lose their lives annually due to motor vehicles. We need to move from a mindset that cars are still OK as long as they get a few more mpgs to an understanding that one car per person is neither feasible, nor desirable, in this country, nor in any other.