Phone and laptop chargers, my own IFE when I'm stuck in the back of yet another crappy UA 747, music and headphones. And a pen. I hate having to scrounge one right before landing for customs forms. Ought to start carrying a water bottle, even after all of the mini-bottles and dixie cups, that'd never occurred to me.

I don't really bother with devices anymore, given that I already have to lug around a laptop, why bother with yet more weight in my bag?