In today's economy, cash is king—and your credit could be shrinking daily.

Before this recession, credit cards could always be used in case of emergency. Now, Suze says credit card companies are making it more difficult for people to use their cards. Afraid people won't be paying their bills, Suze says companies are closing accounts with zero balances, reducing credit limits for those paying a little at a time and hiking up interest rates.

If your credit card is no longer available, what do you do if you lose your job and have no savings? "You will be in serious trouble," Suze says.

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