# 07 Feb 2006, 10:30AM: Credit Card Tips: It's very useful to have a credit card; a credit card is convenient, especially in emergencies, and helps build a good credit rating if you use it responsibly and live within your means. CNN Money has identified the best credit cards for each type of credit card user; for example, a student just starting out with credit might want the Sovereign Preferred Student Visa, since low interest rates, fees and penalties matter to them more than reward points.