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3. An App That Tells You Exactly What to Put in Your Suitcase

If you love travel but hate packing, there's an app (actually, a handful of them) for that. One that works across platforms is PackPoint. Enter information such as where you're going, how long you'll be there and what you plan to do (hike, go out for a fancy dinner, etc.); it then builds a customized list of what to pack, including everything from clothing to electronics to toiletries.