Attach permanent leather or plastic tags with your name and phone number to each suitcase and keep them current. Remove old flight destination tags before leaving home.
Put your contact info on everything, including glasses cases, cameras and cell phones. If you leave anything on the plane, it's essential that it be identifiable so it can be returned to you.
Put a copy of your itinerary in your suitcase. If your bags are found while you're away, they might get home before you do.
Make sure the airport tag on your bag matches your final destination. Confirm that luggage tags and the number of checked pieces matches. Keep your tags in a very secure place--they're your receipt and proof in the event of loss.
Find a baggage agent immediately if your luggage does not arrive in the claim area. Ask if your bags arrived on an earlier flight. If they are not in the holding area, fill out the forms. Get a phone number to call in case you need to follow up and give them yours. Most airlines will provide basic amenities--toothbrush, toothpaste and razor--while you're waiting for your bag.