Review on Hot Pink ACdream Passport & Vaccine Card Holder Combo - RFID Blocking Travel Documents Organizer Protector by Daniel Bulkley

If you want to hold all your travel documents and credit cards in a single place this does the job. However, it's pretty bulky and you will need to remove your passport when showing it to whoever needs to see it so it's not all that convenient. That said, at least all the important things are in a single place which gives you additional confidence that you didn't leave something behind.