Nothing undermines a well-planned vacation quite like no-show luggage. When your suitcase fails to appear on the baggage carousel, you're guaranteed a stressful experience filling out baggage-claim forms and futilely waiting. So how can travelers safeguard their stuff? The obvious solutions are to book a nonstop flight or pack everything in a carry-on, but clearly this won't work for everyone. If you need to check a bag, the following seven strategies will help ensure that your luggage stays on track.