How to save gas:

Some common tips on saving money at the pump all start with one thing, using less gas. Car pooling, driving slow and steady, these things will help your wallet, and the environment. MSN recently had a good article on numerous ways to save fuel:

• Plan your trips and driving routes to avoid traffic congestion. Backed-up traffic and redundant trips cause you to be on the roads for a longer time, burning more gasoline.
• Accelerate evenly and drive smoothly so you keep abreast of traffic but aren't putting on the brakes frequently. "Any time you hit your brakes, you're throwing energy away" in a traditional gas-powered vehicle, Kaufman said.
• Use cruise control when traffic conditions allow because it "will smooth out the transitions" and help maintain an even speed.
• Don't carry more than you need on your vehicle. For example, rooftop cargo carriers, no matter how aerodynamically shaped, will detract from fuel mileage by creating drag, he said.
• Get rid of things inside the vehicle you don't need for your trip, such as sports equipment stored in the trunk. Kaufman estimates there's a "2 percent penalty" in fuel economy for every extra 100 pounds of cargo and people in a vehicle.
• Make sure your vehicle is properly maintained. This includes keeping the air filter clean, getting regular oil changes and, most especially, routinely checking to ensure tires are properly inflated. Underinflated tires can tax fuel economy by as much as 10 percent, he said.

Read the whole article for many good tips.