(Photo: Justin Sullivan/Getty Images)
Stock Up on Apps
There are umpteen mobile apps that could prove very valuable on your trip. Ideally, you'll want to snap them up well before your departure date, so that you have time to research, compare prices, and, of course, download the apps before you leave. Some of these might include flight-notification apps, map apps, itinerary apps, language-translation apps, destination-guide apps, gas-finder apps, and weather apps. For more ideas, see Nine Apps That May Change How You Travel and 10 Free Travel Apps You've Never Heard of.