On your next trip, whip out your smartphone camera and shoot the following photos. It will take only a few seconds and could save you untold headaches and wasted time—even hundreds of dollars—later in your trip. -------- Wendy Perrin is the founder of WendyPerrin.com, where she shares...

Some travel insurance policies don’t cover flights booked with frequent flier miles, and that makes sense, at least on one level. After all, what’s a mile worth? You might have one number, the airline might come up with a different one, and, well, you...