Credit cards are important tools for purchasing, both at home and abroad. At home, credit cards are an easy way to build credit while paying off purchases. In other countries, getting cash can be very costly with foreign currency withdrawal charges at local ATMs. Furthermore, you want to have a minimal amount of cash on you in case you are robbed. Credit cards seem to be the best option when it comes to money while traveling and a smart choice while at home. However, having a credit card is only helpful if it is accepted.