Pick one color scheme. All your clothes should play nice together. Choose either black or brown, and then add accessories like fun costume jewelry, colored scarves and belts to brighten up your outfits.
Always pack sexy heels and a light sweater for layering. Heels can dress up any outfit, and you may need the sweater for those cooler nights.
Avoid wrinkles. Softly fold your clothes and pack them separately in travel envelopes or "pack-it" folders (try eaglecreek.com). You get more wrinkles when you place harder fabrics with softer fabrics, so pack jeans with jeans and cotton tees with cotton tees. You can also use a Downy product called Wrinkle Releaser. Just hang up your garment, spray it, and in five minutes, the wrinkles are gone.
Store jewelry separately. Wrap each piece in a napkin or tissue paper before placing them in a big Ziploc bag. Feeding chains through straws and taping them at both ends will keep them from getting tangled.
Use your footwear. Wrap small breakables, like perfume or makeup bottles, in socks and pack them inside a sneaker or shoe. Carry a small travel care kit on long flights. It should contain lotion for your hands, face cream, aspirin, lip balm, an eye mask and earplugs.
Use your carry-on case. Prop up your feet, and create your own "La-Z-Boy" reclining chair on the plane or train.
Always bring a snack. A freshly made sandwich from your local deli will help you can avoid fast-food traps.