People with shaky credit can fall prey to shady credit card deals.

Some are downright dishonest, some are offering products that really don't stand up when you put a spotlight on them.

And if you do sign up be sure the company offering them is the right one (i.e., do they come directly from the card issuer?). If not, contacting the card company to be sure the cards are authorized.

Beware of "debt suspension" offers. Banks can offer it without having to use insurance companies. It is commonly offered as an extra with your card, and is generally sold as a way to keep your head above water if you can't make monthly payments because of a job loss or disability. But this sort of insurance does nothing to pay your bills while you can't -- it simply puts them on hold. While you are out of work you can't use your card, and while interest is not being applied, the total balance is lurking in wait for the minute you get back to work.

Beware of buying credit protection you don't need. For example, many people have been duped into buying protection in case their card is stolen and the thief runs up a big bill. But federal law already protects card users. Consumer liability is capped at $50, and it is rare to have a credit card company even ask for that money if you have promptly reported the card missing or stolen.