Got the same promotion today -- 5 miles per $1. I usually put all of my spending on my BofA card since it has the lowest interest rate of my four US CCs, unless there is a DQPM promo or I'm using a $99 companion cert. Wonder if this is a sign I should change my primary card? I occasionally get mileage promos with my BofA card, but it's typically 3x and not 5x miles. Strange that I only got this promotion on one of my Barclays cards, the one I use the least with the highest interest rate!