Also, too many open credit card accounts can be a bad thing. But, if you already have several open credit card accounts in good standing, don’t cancel them, the added “good” credit history can help your credit score. If you find that you have way too many open credit card accounts and you have decided to cancel some of them, be sure to cancel the most recently opened accounts. Keep the oldest accounts open. Normally the longer your payment history on an account, the better your credit score will be.
Try not to open any new credit card accounts that aren’t necessary. Generally when you open a new credit account, it will lower your credit score slightly, at least for a short period of time.
How you manage your “revolving credit” (credit card accounts) is a big factor in determining your credit score.