If you’re planning your first trip overseas, millennial money expert Stefanie O’Connell has some money-saving tips. Alert your bank that you plan to take this trip. You don’t want to be in a store, trying to make a purchase only to find out that your credit card is declined. If you tell your card issuer that you’re going overseas, you may be able to avoid that. You should also be aware of foreign transaction fees your card may impose, and see if you can get around ATM fees. Start your search for a new card at MONEY’s Best Travel Credit Cards.