<prompt> Human: Ive had my old cc for a long time. I want a new one with possibly a new bank for better rewards and less fees. If I get the new, I wont ever probably use the old one anymore. Sure I can use it as another credit line, but if I needed more credit, perhaps I should just get a credit increase on the rewards card or sign up for another card with rewards again? What are your thoughts?  <response>: You should keep it open. By closing it, you will reduce the overall average age of your accounts. Keeping it open will also improve your utilization rate. 