<prompt> Human: I like to open a credit card just because I was making a large purchase at a specific store to get the x off added to the purchase. I then make the full amount payment before the monthly interest rate bringing the credit card balance back to 0 and then never use the card again.I have amazing credit and I am very strict with debt. I pay off all my credit cards every month so I never pay interest.My question is there a problem if I just keep opening these credit cards for the first time purchase perks and never use them again? I have 8 credit cards, 6 at a 0 balance for a long time and 2 for everyday personal use and business use. Thanks!  <response>: Nothing wrong with it. Theres no catch although sometimes the effort involved isnt worth the payoff.You can go ask rchurning to see what kind of endgame you can reach when you take this to the extreme. 