Use butter as lip balmIf your lips get parched on a plane and you realize you totally forgot to pack some lip balm, ask the flight attendant for a packet of butter (the ones that usually come with your meal). In a pinch it makes for an amazing (and yummy) substitute for a salve, since it will keep your lips soft and moist. Swipe deodorant on...your faceIf you’re spending time in a super-hot location, try this celebrity makeup artist trick: Swipe your deodorant clean, and then swipe it over spots you’re likely to sweat on your face (like your forehead and upper lip). The ingredients that keep your underarms from sweating will work the same way on your face. (Just don’t do this step everyday, since you could breakout.) Then, apply moisturizer and makeup over top, as per usual. Pick up a gel deodorant that twists up, like Secret Outlast Antiperspirant & Deodorant Clear Gel, and gives you a fresh dosage every time you use it. With these formulas there won’t be any white residue on your skin if you do need to use it last minute to keep perspiration at bay.Go for cream...not lotionApply a heavier moisturizer (than what you normally slather on) the night before you travel. This increases your skin’s hydration before the effects of road-tripping dehydrate it.Enlist a mistToting a travel mineral mist, like E.L.F. Mineral Mist, helps keep skin from dehydrating —and keeps you from globing on more moisturizer than you actually need when you realize your skin is flaky. Take towelettes on your tripThese babies come in handy, trust us: Spilled your drink? No problem! Need to wipe your face clean to freshen up? Done.We like Neutrogena Oil-Free Cleansing Wipes in Pink Grapefruit, which contain pink grapefruit extract that helps fight off those pesky pimples that seem to pop up when you’re away from home.Be a nudist...on your nails, that is! Skip bright polish on your fingertips (wear on it your toes instead, since color tends to last longer there anyway) and go for a barely there shade on your fingers. Chips are less likely to be detected when you’re wearing a pretty nude hue. Try RGB Cosmetics RGBxHIPP Nail Foundation. This line of four shades range from fair to dark and are a match for every single complexion out there. Bonus: They’re earth-friendly and paraben- and gluten-free.Keep hand sanitizer handyTo avoid getting unsightly pimples while you’re on vacay, NYC-based dermatologist Francesca Fusco, M.D. advises against touching your skin while you travel. "You can pick up any number of unknown bacteria that can result in any number of skin problems after you arrive.”Also, if you’re going to apply makeup mid-transit, Fusco suggests using an antibacterial hand gel, like triclosan-free Clean Well All-Natural Hand Sanitizer, 13.98 for a pack of six, amazon.com, on your palms first to disinfect your hands and ultimately protect your face from germs.Carry on a dry shampooOften times your hair can look limp when you’re traveling, so as soon as you arrive at your destination, flip your head upside down, and spray it all over. Voilà—volume!PS. Miniature-size ones, like Ojon Full Detox Rub-Out Travel Dry Cleansing Spray, work perfectly because they’re TSA-approved.Use your flat iron as a regular ironIf your clothes are a little wrinkled after you’ve unpacked and there isn’t a regular iron in sight, use your travel flat iron to smooth your collar, sleeves, and hemline. One hot tool we recommend: Amika Leopard Mini Ceramic Styler.Cosmos.com