I will be heading to Seoul, South Korea to begin my new life as an ESL teacher. I've decided to make this my career, due to the huge rush I get from seeing actual improvement in someone's working English as a result of my hard work. Anyway, the flight is 12-15 hours. For those of you who have traveled long distances and endured long flights, what are some of the things you do to make the time pass? Any small tips or suggestions to make myself more comfortable are greatly appreciated.