  Bring clothes that you can mix or match. To avoid wrinkles, choose wool or cotton and polyester blends. Pack clothes in plastic bags from the dry cleaners and when you get where you're going, just hang your clothes in the bathroom when you shower. The wrinkles will fall out from the steam.

  Don't take too much with you. Pack larger items first, then stuff rolled-up underwear, socks, shoes, and other items around them. And remember, don't get upset if you forget something. You can buy just about anything you need at the destination or on board ship.

  When you've finished packing, place a copy of your itinerary with dates and addresses inside each bag. Don't carry valuables, medications or flammable materials inside your checked luggage. Remember to pack a change of clothes, important medication, valuables and toiletries in a carry-on bag. And, always check your luggage through to your final destination if possible and never leave it unattended.

  Pack a bathing suit even if swimming isn't on the itinerary. Often you'll find that your hotel or condo has a pool.

  Black leather sneakers do double duty. They're comfy for walking, and, if you and the maitre d' aren't too fussy, you can fake it when you need to be more formal. (This trick is easier for men than for women, but black sneakers may blend in with a pants suit.)

  Dress in layers. The combination of a windbreaker over a sweater over a shirt or blouse over a T-shirt offers you many more options than one light layer and one heavy coat.

  Take along a few zip-closure bags in several sizes. They're bound to come in handy for holding loose stuff that you accumulate, or wet items that haven't had a chance to dry before packing.

  Every piece of clothing should match at least two other items or have at least two uses (e.g., sandals double as slippers).