A great travel app should make your life easier, whether you’re camped out under a beach parasol in Martinique or backpacking between B&Bs in Slovenia. There are countless — really, I lost count — apps available for day-trippers and world adventurers to help you prepare a trip, and once you’re on the ground, make the most of the places you’re visiting. I’ve narrowed it down to ten basic apps that will help you save money and time, and avoid headaches. At least travel headaches. What you do …