 Technology may have changed, but common sense hasn't. And here's the deal. U.S. dollars are still strong all over the world, number one. Number two, you never want to buy foreign currency in the U.S. because the exchange rate is not beneficial to you at all. And you don't need it. Do you have an ATM card? I do, but I don't really use it. But I could. Well, wait a second. Check with your bank.