The nation's banks are reaching new lows when it comes to customer no service. The latest wrinkle took Clark by surprise because he's received scattered calls about this issue without realizing there was a pattern emerging.

Now The Wall Street Journal has discovered that banks are arbitrarily reducing credit limits without telling you. The first you'll hear about it is when your purchase is denied!

Some banks are having up to a 10% default rate on the cards they issue. That's a huge number compared to historical averages. Their panic is so great that they're indiscriminately reducing credit limits -- even sometimes for those who pay their bills in full every month.

The Wall Street Journal also reports that banks are taking a zip code approach to reducing credit limits. This is especially true throughout the real-estate bubble states -- California, Arizona, Nevada or Florida. Again, the banks are frightened because they've seen people go from being current on their bills to declaring bankruptcy practically overnight.

Meanwhile, the banks are also targeting the self-employed because they're frightened of small business bankruptcies. Clark read about one person who had an American Express card that got cut from a credit limit of $36,000 to $4,300!

So if you fit into any of these categories, make sure you're not dependent on any one bank or one credit card. You should have multiple lines from multiple banks. But beware if you miss a payment or are late. Then you've really got a bull's-eye on your back.