I have never traveled in the same month as my use year, so have never had to deal with this, but when exactly do your points expire? It is on the first day of the month or the last day? I am looking to travel in December of 2010 and will have some December 2009 points left over. If they expire on December 31st, then I will be fine. If not, then I guess I'll need to bank them to be used for any time after December 1st. Thanks.