Traveling internationally for the first time is exciting, but it can also be overwhelming, especially navigating customs and foreign transportation systems. Simple mistakes can lead to unnecessary challenges. The good news is that with a little preparation, international travel can be much smoother and far less stressful. Here are 10 common mistakes first-time international travelers make—and how you can avoid them.

Passports might not be the most exciting part of travel planning, but they’re one of the most important. Whether you’re dreaming about your first international trip or planning your next adventure abroad, understanding how passports work can save you from major stress later. From knowing when you need one to avoiding costly mistakes, here’s your complete guide to passports — with a few insider tips from a travel advisor along the way.