Cheap Air thinks travelers should save their money. They'll need it for paying for extras like checking baggage and experiencing this newfound invention called "leg room." The company was founded by someone who knows the importance of cheap airfare: a college student planning his backpacking trip through Europe on a ramen-noodle eating student's budget. Today, Cheap Air uses a proprietary search engine to scour the web for the absolute lowest airfare prices available. Travelers plug in where they want to go and when, and Cheap Air will do the rest. They'll also let users compare in-flight amenities and additional fees (one flight may be cheaper, but they may charge an exorbitant amount for carry-ons larger than a wallet) to help them find the best deal. They'll even credit a traveler if the airfare drops after they purchase it. And just in case a traveler isn't already convinced that Cheap Air is the best booking source around, they were the first travel agency to accept Bitcoin as payment.