If you travel—especially to budget or older hotels—putting your suitcase in the bathtub right after check-in can save you from big headaches.The Bedbug BarrierBedbugs hide in mattresses, headboards, and carpets, and they can hitch a ride home in your luggage. Bathtubs, made of smooth, cold surfaces like porcelain or fiberglass, are nearly impossible for them to climb—making them a safe...