I can sum up my response to the soaring price of gasoline in just one word: Aargh! While waiting for prices to come down (do you think they will?), don’t sit around complaining, all the while paying through the nose to drive your car. There are lots of things you can do to increase the number of miles you can squeeze out of each gallon of gas, effectively reducing its cost. Here are a few ways to get better gas mileage. Empty the Trunk Call it science. The heavier the car, the harder the engine has to work to move it around. The harder the engine works, the more fuel it burns. So unload all that other stuff you’ve been carrying around in the trunk for no good reason. (Please leave the spare tire and emergency equipment.) It’s a trunk, not a mini storage unit. Unload and you could easily …