If you’re the kind of person who drives and is interested in saving money – and who isn’t – look no further than your smartphone for help. Specifically, one of several apps that will help you find the cheapest gas prices around. Here’s my three favortites: GasBuddy is an old favorite and gives you the most up-to-date gas prices wherever you may be in the U.S. or Canada. GasBuddy relies on users to update prices, who in turn have a chance to win $100 every day for adding prices. It also gives you a map so finding the lowest gas prices is easy. The app is free for all platforms.…