Nobody has mentioned an eye mask yet! Sure, you can use a bandana, but a mask that fits your face well blocks out all the light. I take it that Doug is sensitive to errant rays of light (the binder clips for the hotel drapes that never quite fit perfectly together).

These days, you should also bring a few extra breathing masks if you might end up sleeping in the airport. These things start to smell after a while, so it would be good to replace them.

For a while I traveled to Europe regularly. I often had to make three connections at a minimum. Spending a night at the airport happened quite often. I never did special prep for it -- except the power strip, I guess: different plugs in different countries, different voltages.

I have to ask, what do you use the wet wipes for??? In an airport I can easily walk into the bathroom & make my own if necessary. But I usually just wash up in the bathroom rather than using a wipe.