<prompt> Human: Im 25, have a decent income and no debt. Right now I have a single credit card with a 15k limit. My credit score is fine.Should I have more than one credit card? Right now I have the capital one card that gives 1.5 back on each purchase. I dont grocery shopbuy gas, so I dont need a rewards card like that. If I was going to get another one, it would probably just be another cash back card. Is there any advantage to having more? I know the age of the accounts matters for your credit score, which is part of the reason im considering doing this now while im young and the average age is already kind of low.  <response>: More cards, more accounts , higher CLI.Go for a chase freedom or discover it card! 