My friend, who worked at a bank, offered this suggestion when traveling: Always travel with a card or cards opposite of your traveling companion in case one of you gets their card lost or stolen, you will have another way to pay. Example, Person 1 carries a Chase credit card, Person 2 carries a Citi card or AmEx. I take this advice to heart. Not only in the event of lost or stolen, but there could be a bank whose servers go down. It doesn't happen frequently, but there could be a catastrophe and Chase could go down, for example. It would be good to have a back-up card from another issuer. I read on these boards all the time about guests who travel with debit cards, gift cards or cash, and that is not at all how we roll, but everyone needs to think through the worst possible scenarios and have a back-up plan, especially when traveling internationally. When you think of it, especially in these fluid times, A LOT could go wrong.