13. Take Your Cleanser With You
If you can only take one skin care item from home, let it be your cleanser. "An abrupt change in cleansers can disrupt skin's acid balance and cause a vacation breakout," Welch says.
14. Get Your Beauty Rest
If you're going to nap on the plane, dab some super-rich night cream around your eyes and don a sleep mask, says dermatologist Jeannie Downie, MD, co-author of Beautiful Skin of Color. Both will help you look fresher and more relaxed when you wake.
15. Slather on the Hand Cream
Never leave home without a tube of your favorite hand cream in your tote bag, and use it liberally throughout the trip, says esthetician Maxine Siegel. This will not only keep your hands from drying out, says Siegel, but in the event you do need to wash them, it can help counter the effects of harsh commercial-grade soaps found in public restrooms.
16. Pack Your Beauty Products
If you're traveling outside the country, bring your high-end facial products along, says Brown, because most are much more expensive abroad. Safe buys overseas usually include body lotions, shower gels and soaps, talcum powders, and fragrances.
17. Tame Your Tresses
To keep hair looking good without igniting a firestorm of static electricity, Brown keeps a natural boar bristle brush in her carry-on. And, she says, never underestimate the power of a great beret or cloche hat to hide the sins of plane hair. "I also find that a big European scarf wrapped around my neck makes the whole disheveled hair look more chic. Sometimes you just have to go with it!"
18. Get the Grease Out
To help cope with greasy hair that often took an hour or more to wash and dry, beauty expert Jayne Polan invented Shampowder, a dry shampoo that cleans and deodorizes hair and adds volume. It comes in shades to match or blend with your own hair color, and it's packaged in a small, travel-friendly plastic container with an attached hairbrush.