Buy a travel size of your favorite moisturizer - Cetaphil cream works fine. Keep that along with a moist towelette or a small Evian type water spritzer in your carry-on. You can also just use the water in the airplane bathrooms with a moist paper towel.

Spitz or wipe a thin layer of water on your face and neck, then immediately apply moisturizer over it. More makeup over that if you want.

You'll be amazed at how much better your skin feels at the end of the trip!

Check out the November Product of the Month - a time-tested moisturizer.