Credit cards are convenient for making purchases quick and simple, and holding one or more cards is a sign of individual credit worthiness and responsibility. With little more than a swipe, a person can access the full range of goods and services to meet his or her needs and desires. Credit cards are an excellent tool, especially if the balance is regularly paid off. Sometimes, for a number of reasons, users need to carry a balance from month to month. Over time, this can decrease available credit and lead to a card that is maxed out.