Alright, so last year I took advantage of the well known Citi mistake whereby you could apply for the Citi AA Platinum card repeatedly and get the bonus multiple times. So I ended up with three of them before they shut the door. I've since applied for the Citi Executive card and gotten approved even though I had a long-time Citi AA Gold MasterCard and 3 Citi AA Platinum VISAs. However, in the long run it seems like a bad idea to be hanging on to multiples of these given I'd like to qualify for new bonuses again someday. I traded one of them for the Citi Executive. So now I've only got two left. Should I wait until 8-11 months on the next one and then cancel it, or should I close one of them soon?