Nothing can slow a trip down more than getting robbed. Your passport, your iphone and that cute girl's phone number all gone in an instant. But a few simple travel locks can help revent that hassle. Luggage locks are lightweight and compact locks that secure the zippers on your backpack, day pack or suitcase. Their primary purpose is to keep your pack secure when it's out of sight. If you have to store your bag in a pile at the back of the bus while you sit eight rows ahead, no one can rifle through it while you're snoozing. The other big benefit is preventing pick pockets. These guys are so skilled you don't even feel it happening. Someone asks directions while another guy unzips your pack pocket and helps himself. So when you're out and about, it's good to have your external compartments zipped and locked. And finally, quality luggage locks should be TSA compatible and include an indicater showing when the TSA has unlocked a check bag. So take along a few luggage locks and keep your gear where it belongs!