There's nothing worse than getting sick on the trip you've been saving all year for, so make sure that you bring a bottle of hand sanitizer on your international flight. A study showed you're 100 times more likely to get sick while flying versus going about your daily life. Bacterial hotbeds on planes include seat pockets and tray tables (in a recent test, four out of six trays were shown to have traces of the antibiotic-resistant bacteria MRSA and norovirus) and, natch, bathrooms, which host E. coli bacteria aplenty. Not too surprising given that most carriers deep-clean planes just once a month.

Don't wait until your plane takes off to break out your sanitizer, though: Airports also rank high on the list of places you're likely to get sick.

Take a leaf out of a chic European woman's beauty book and bring a brightly colored lipstick. Look for one with sunscreen -- it will protect your lips while you soak up the sun on the porch of your chateau by the sea. To lighten your makeup load, combine a swipe of lipstick with a dab of petroleum jelly, coconut oil or face moisturizer on the back of your hand and use the mixture as a cream blush.

Flights are incredibly dehydrating, so packing a paper face mask is a great way to make sure your skin rehydrates after a long red eye flight. Look for one with hyaluronic acid, which has moisturizing and plumping super-powers. Didn't get enough sleep in coach? Use a mask with antioxidant vitamin C, which promotes skin brightening. It also reduces inflammation, which helps compensate for the skin-repairing processes that you body would have undergone during sleep.

Pare down your travel beauty routine with everyone's favorite multipurpose beauty product. Use it to remove makeup (just put it on a cotton ball and swipe), dab it on your hair to fight frizz or slather a quarter-sized amount on your hair as a deep conditioner before rinsing out. You can even use it as a replacement for shaving cream -- just rub about a tablespoon on each leg before you go over them with your razor. (You won't even have to moisturize after shaving!) Using one product instead of five frees up space in your suitcase for all of those souvenirs from your worldly travels.