Airport anything is not cheap, but there are plenty of other options to keep one occupied: People-watching, window-shopping, reading, journalling/sketching, and any combination of calling people/playing videogames/listening to music that your electronic devices may allow. Remember to stretch, stay hydrated, wear comfortable and easily-removed shoes, and try to get some rest on your flight. Throat lozenges work wonders for nausea and popping ears. Travel safely!

And you don't need hairspray