We interrupt your regular Fool programming to bring you this important message:

"Good news. I just saved a bundle on my car insurance!"

If you've watched any network TV in the past few months, you've probably heard this slogan. It's the crux of a TV campaign from Berkshire Hathaway's (NYSE:BRK.A) GEICO. People going about their everyday lives (well, if meeting clients in prison or auditioning rappers is workaday for you) get approved for cut-rate insurance.

The cameras weren't rolling when longtime Fool Tony Miller (a.k.a. TMF 2Aruba) recently fielded a call in the middle of teaching a class. The call wasn't from GEICO, either, but the message was identical: You've saved a bundle on your car insurance. The amount? A cool $757.

So what company is offering such great savings on car insurance? Perhaps it's your own insurer.

More than a year ago we alerted readers to the credit score-insurance rate connection. Past credit blunders were affecting the premiums consumers paid for insurance coverage. The practice punished customers with pristine driving records but less-than-perfect credit scores.

Tony found that the reverse was true, too: Those with admirable credit scores (and decent driving records) can get a sizeable price break. All you have to do is ask. So Tony did. (For the whole story see his post on the Consumer Credit/Credit Cards discussion board.)

Want to save a bundle on your car insurance? Buckle up and check out your credit score. And for more on the wacky world of insurance, visit the Fool's Insurance Center.