Thanks to all of you. One more question. What do you think of this plan?I was thinking I would take the Platinum MR points and go Amex > Continental > Amtrak > UA. If I used the Platinum card only for the double point opportunities up to the 25,000 yearly limit, would that be a reasonable use of it? I guess I just hate to pass up double miles. Thanks for all your wisdom. I'm very new to this game and appreciate the advice of pros.