Gas prices have already cracked $4 in a trio of states, and some experts are predicting they could skyrocket to $6 by the spring. Short of buying a bicycle and pedaling to work every morning, what can you do to keep high gas prices from eating a hole in your budget? There are actually plenty of ways to conserve gas: Take the junk out of your trunk, keep your tire pressure up, don’t drive like a Daytona 500 contestant, or ditch your SUV for a compact. But even if you do all of these things, you still need to pull up to the pump sometimes. That’s where these suggestions come in.