Looking for some great green apps to save money when you’re traveling by car? Earthgarage has a great list of smartphone eco applications that you can download and use anywhere, anytime, to make your car greener and your wallet fatter. From an app that teaches you green driving techniques to one that makes parking a breeze, read on for three of our favorites!

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GasBag

This iPhone app keeps track of gas prices and will automatically find the cheapest and closest gas station to your current location. Gasbag also has a log book to help you keep track of time, location, and current mileage at each fill-up.

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EcoDriverEd

EcoDriverEd is an ingenious app that teaches you how to drive greener. The app takes advantage of your smart phone’s built-in accelerometer to teach green driving techniques that improve fuel economy, reduce CO2 emissions, and save you money at the pump. The app also uses real-time training programs and feedback to help you adjust while driving.

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PrimoSpot

PrimoSpot is an invaluable app for drivers in the New York City or Boston metro areas. It uses your phone’s built-in GPS to find your location and then lists nearby parking garages (with rates) and tells you if it’s ok to park on your current street.

For a guide to other iPhone/Smartphone apps that can help you go green and save money visit earthgarage.com.