Thanks for the continued posts - all provide great information. I'm mourning all the lost opportunities as I've flown quite a bit in the last 3 years but expect to be flying a little less. But I guess that makes this info more important now. Am planning a trip to Denver next month - will see what I can pull off for that one. Thanks for all the great tips and links - would like to get some runs in before UA starts clamping down on max awards by seating class or some other idea that will reduce passenger loyalty.