Finding a cheap airplane ticket is something of an art, one that you can learn in a very short space of time, but can spend the rest of your life trying to master. Being able to buy cheap airplane tickets is a very handy skill, and it's surprising they don't teach it in school. Spending a whole year learning calculus in college didn't provide me with anything that I have since used in real life. Maybe if I'd instead learnt how to get cheap airplane tickets, I