Like most of you, I've taken advantage of the recent card bonuses and now have a wallet full of new plastic. Between spouse and I we have 6 new cards, 2 Citi AA and 1 Cap One each. Which ones should I keep? I'm leaning towards keeping/using spouse's Citi AA Visa (building that AA acct) and my Cap One (no forex fees). I'm new to the miles and card games... any suggestions? Should I close the other 4 or just not use them? If close, should I try to combine credit limits first? Which scenario is most likely to increase our credit scores?