Debt Cosolidation

Dear Lifehacker,
I've racked up a good bit of credit card debt, and while I'm slowly paying it down, it's a pain wrangling multiple bills with different interest rates. My credit union is offering debt consolidation loans with a lower rate than any of my cards—should I take that, use it to pay off all of my cards, and only have one, low-interest bill to pay every month?
Sincerely,
Trying to Dig Out
Dear Trying to Dig Out,
It's tempting, isn't it? Getting rid of all of your credit card bills, no more annoying multiple payment to multiple creditors, just one, automatic loan payment every month that comes out of your account automatically and you're back on the road to being debt free, right? Well sure—but it comes with a couple of pretty big caveats that might sour the milk for you. Let's explain, and then you can decide whether it's a good idea in your case.