Using Your Cards Outside US
Problems in using US credit cards issued while traveling outside? First of all, you should notify your bank about your travel plans. Then you should know that there are countries where using a credit card can be restricted to some merchants only, while using debit cards is always possible. In order to protect yourself when using the debit card, a good practice is to have a separate checking account to use when outside US. I found in today's NY Times an article on this topic.