How to Prepare Your Credit Cards Before You Travel
Pack a no-foreign-transaction-fee card
For purchases abroad, use a credit card that charges no foreign transaction fee, since a 3 percent fee on everything you buy adds up fast over a trip. Most travel cards waive it, but plenty of everyday cards do not, so check before you leave and bring the right one. And whenever a terminal asks, always choose to pay in the local currency, never your home currency, because that dynamic currency conversion hides a steep markup. See foreign transaction fees and using cards abroad.
Line up fee-free cash before you go
For cash, have a plan that avoids the foreign ATM fee stack, which can be your bank fee plus a currency markup plus the operator surcharge. A fee-free travel account, such as a Charles Schwab debit card, refunds ATM fees worldwide with no markup, and is worth opening before a big trip. Never withdraw cash on a credit card abroad, because that is a cash advance with an upfront fee and immediate interest. See how to avoid foreign ATM fees.
Know your travel protections before you need them
Your cards may already include trip delay and cancellation coverage, rental car protection, and baggage coverage, but only if you pay for the trip with the card that carries them. Decide which card to use for the flight and the rental car before you book, so the coverage applies, and so you can confidently decline the rental counter waiver and skip duplicate insurance. Skim the Guide to Benefits and save it. See card travel insurance and benefits you are not using.
Use expiring credits, and a few last checks
A trip is the perfect excuse to spend an annual travel credit, an airline fee credit, or a free-night certificate that is about to expire, rather than forfeiting it. Check your lounge access for the airports on your route, and make sure no card you are bringing expires mid-trip. A travel notification call is usually unnecessary now, since most issuers rely on real-time fraud detection, but confirm your issuer has a current phone number and travel-friendly alerts. See do not let certificates expire.