Credit cards can charge finance fees and interest for allowing purchases on credit. It is risky to only pay minimum amounts each month as interest charges accumulate. Common credit card companies include Visa, Mastercard, American Express and Discover. Maintaining a good credit score is important, as credit ratings reflect creditworthiness and are checked when applying for loans or credit cards. Using credit can benefit users when managed responsibly.

1. Credit Cards By: John Brothers Block 3 5/6/09