Keep offline copies of confirmations, addresses, insurance details, and important contact information before departure.
Save important confirmations, addresses, transfer instructions, insurance information, emergency contacts, and document copies where they can be reached without cellular service or airport Wi-Fi.
A photo of the passport's information page, saved offline and also emailed to yourself, is the fastest way to start replacing it if it is lost or stolen abroad — a State Department replacement request asks for exactly that information first, not your best recollection of the number. The same logic applies to prescriptions, insurance cards, and the hotel confirmation with the address written in the local language, which matters more than it sounds like the moment a taxi driver is involved and everyone is pointing at a phone with 2% battery.
Keep sensitive records protected, and avoid storing full payment-card details unnecessarily. Technology is extremely confident until the exact moment it is needed.
