Have you ever heard about how you can unlock your car by having someone transmit a signal from a spare remote key via your cell phone? Pretty cool, huh? Well, it doesn't work. Keyless remotes and cell phones operate on completely different frequencies, so don't plan on this trick ever saving the day the next time you lock your keys in the trunk. Regardless, I've heard this urban myth so many times over the past few months that I even started to believe it might work. That is, until I saw it busted with my own eyes on perhaps the greatest show known to mankind—Mythbusters. Seriously, I can't get enough of the Discovery Channel.

YES! Unpaid medical debts can most definitely hurt your credit scores. Paying your medical bills on time and in full, however, will do nothing to improve them. Doesn't sound fair to the consumer now, does it? Well, it isn't, and lawmakers have even looked at legislation in the past which was written with the intention to wipe consumers' credit reports clean of "paid" medical debts that were delinquent at one point in time. The bill unfortunately never passed the House, so the issue remains unresolved.

FICO scores consider a lot of different personal information found in your credit reports, but employment history isn't one of them. In fact, according to FICO, "your salary, occupation, title, employer, date employed and employment history" are never considered by its credit-scoring model. It seems logical, right? Your employment history, income and job title don't necessarily indicate what type of credit risk you are, so why should they matter to FICO?

We're all aware of the importance of having great credit scores, but sometimes figuring out how to get that stellar credit score is like cracking the code to the secret sauce at your favorite burger joint. The result is that over the years, dozens of credit scoring myths and misunderstandings have popped up as people have attempted to get their financial lives in order. Here are my top five in descending order.