LOL... I don't even have an iPod yet. My never-travel-without item is my little DVD player and my Bose headphones. Even for a little flight like this one from SEA to SFO, I plug in a movie, slip on the headphones, and the flight goes by in no time at all.
For longer flights it *definitely* saved my sanity.
I can sleep on planes, but I usually don't.
OK... time to pick a movie for this flight...
I think: Team America
I dunno, I'm just in that sort of mood.
Are those worth the investment? I've had my eye on them for a while.