Credit card conveniences that cost you

Let's face it, a big part of the appeal of credit cards is the convenience. They're easy to use, let you pay quickly, earn rewards and defer payments for a month or so. But in the name of even more convenience, credit card companies offer all sorts of other services. Some, while they're pitched as conveniences for you, are actually ways for the card companies to take more money from you.

As this article by Investopedia.com points out, a few of the biggest offenders when it comes to pricey "conveniences" are better off ignored.