So we all know that when you're travelling you get hungry, and you get thirsty. Unfortunately the airport companies know this too, and will charge you more than other shops for the same products. It's not always a huge leap, but it's significant enough if you're buying a lot of food, or if you're a frequent enough traveler like I am. So, how do you avoid paying out the nose for airport food? Any tips you'd be willing to share?