Beware!
Not sure if anyone posted this already, but I did a purchase after I signed up for me and MRS credit card, one was a MasterCard and the other happens to be a Amex, now I went into a nearby Location who said they accept AMEX, and bought a soda for a couple of bucks on each card. Did this this year and last year, and Both times only the MasterCard purchase (mine) hit my DM acct! Mrs moebod got nothing. I finally figured out (well I called the dining program...) that even though a restaurant may actually accept Amex (or any card) They DO NOT NECESSARILY accept it as a reward "participating" card. The only way to know fore sure that it will accumulate DM miles, is iff it is listed with the rewards networks website (when you click on the restaurant for more info like hours etc) if it shows AMEX (or whatever you are using) then you are good to go. I think this is very important and may be looked over by other FTers as well....