I am pretty new to the i-dine program and am earning 10 AA per $1. I am going to set up a BA account and think there is to use the same credit card account to get miles in both AA and BA.
I use the HH Amex for 5HH and 10AA per $1. Last year Amex had a promo: add another person to your account for 5k HH. You can make that person yourself and have 2 different Amex HH cards with your name. Amex will asign a different account number to the second card, and not run a credit check. You are a co-signer on you own account. Someone even signed-up his dog. I have searched but cannot find the thread. The promo may be over by now, but there is no credit check.
Okay, shoot holes in my theory
