Slaying That Credit Score - New Tips For A New Year (Part 3)

Watch your credit limits

Banks don't look kindly on those who have used all of their available credit because it gives the appearance that you're not living within your means. "The amount of available credit you use is the second most important factor in your score," said NerdWallet. "Experts recommend you keep your balance on each card below 30% of your limit — if your limit is $5,000, your balance should be under $1,500."

Of course, even lower is better. Get to 20% or even 10%, and you'll be in great shape. But don't go below that. While it may seem like a zero balance would indicate that you are financially savvy, banks like to see responsible credit management. That means using your cards and paying down the balance to a reasonable level every month.