Foreign transaction fees often apply not only to purchases made overseas but to purchases made in foreign currencies, even if you've never left the country. (supermoney.com)
When traveling abroad you will save more money as there is a $ 0 foreign transaction fee when making purchases in a foreign currency. (creditcards.get.com)
Other fees are generally charged for specific services, like completing transactions in foreign currencies, transferring a credit card balance, or making a cash advance. (cardrates.com)