New Delhi, Feb. 19 -- If you have acredit card but you have not been able to use it in a long time, then it is not uncommon. There are a number of people who sign up for credit cards forrewards, introductory offers, or emergency use-but later forget about them. However, leaving an unused card open isn't always a casual decision. It may even affect yourcredit score, security and even your finances.

So, what exactly should you do with that card you barely use? Here's a set of tips to help you decide.

1. Credit score: Even if you're not using a credit card, it still plays a role in your credit profile. We explain how

2.Annual fees:Some credit cards, particularly premium ones, chargeannual fees even if you do not use them. You might also f...