I was more looking into what the timeframes were. I have applied for and gotten the HH plat amex card and the CO chase mastercard. I haven't activated those yet. I already have a Citi AA card that Ive had for a couple years. I was wondering what the time frames should be regarding activating/using/canceling these cards and also the timeframes on getting more of them to max my miles/HH points. Thanks for the help.