American express is introducing a pre-paid debit card.
Pre-paid cards allow consumers to load a card with money and only spend that money.
And the cards aren't attached to a bank account, so anyone can use them.
In 2010, there were 65 billion dollars worth of prepaid card transactions, that's up 35 percent from 2009.
Analysts say this could mark the beginning of a shift away from conventional credit cards.