- If you have one of those hiker's headlamps, pack it in your carry-on! They are invaluable on overnight flights when they flight attendants turn down the lights and occasionally while poking through an unfamiliar room late at night.
- Wash clothes are rare in some parts. (Italy in particular...) Pack your own in a ziplock bag.
- Mini moleskin notebooks are great for scribbling notes, phone numbers, addresses and hours, recipes--just about anything. I find one 80 page note is good for a few weeks.
- The Italian Mosquito, well that's an entire post unto itself.
As always, your mileage may vary...