Credit cards were first promoted to traveling salesmen (more common in that era) for use on the road. By the early 1960s, more companies offered credit cards, advertising them as a time-saving device rather than a form of credit. American Express and MasterCard became huge successes overnight.
By the mid-'70s, the U.S. Congress begin regulating the credit card industry by banning such practices as the mass mailing of active credit cards to those who had not requested them. However, not all regulations have been as consumer friendly. In 1996, the U.S. Supreme Court in Smiley vs. Citibank lifted restrictions on the amount of late penalty fees a credit card company could charge. Deregulation has also allowed very high interest rates to be charged.
