I'll have to see which post office I went to that day! I know the batch I sent before the end of the year I had gone to a different post office - i was also mailing box tops for my son's school - and it was close to noon and the people working there were so cranky!!! Anyway, I think they charged me differently too...I think the one I mailed on the 4th was after work, near work....it's weird though, because sometimes it seems like you get them super fast, and other times....8 days!