It's no surprise that after crude oil nearly hit $140 a barrel this week, more and more people are becoming obsessed with saving money on gas. There are countless articles and websites devoted to cutting costs at the pump, but just in case you're still hunting for good advice, we've got you covered.

You might not be able to control escalating gas prices, but there are some things you can control (while being environmentally friendly!) if you're careful and conscientious.

When it comes to fuel efficiency, there are a few basic parts you should regularly maintain. For starters, your tires and air filters are important. Without proper inflation, your car won't be getting that snazzy 30 mpg the dealer promised you, while dirty air filters are akin to a chain smoker trying to run a marathon. Check your tires about once a week, and replace your filters about once every six months.

Many cars come equipped with navigation systems, but if your ride is yet to be pimped, portable GPS and websites like MapQuest make it quicker and easier than ever to get from A to B.

Other websites can help you track down the cheapest gas station in your area, so you know where to get the most bang for your Buick.

Looking for new ways to save on gas might not be the most exciting part of your day, but at $4 per gallon, it's worth the effort.

-Colin Constantine