I sent mine out on December 1st and it didn't arrive until the 5th, either. (I sent it Priority/3-day.) Oh well.
I'm just glad it went out on the first; the postal worker (really nice guy who has been at that post office for many years) set it aside and said he was going to add extra tape to the box for me, but I was worried he might forget to send it out before the cutoff time that day (or just forget to send it out?). I was watching the tracking information with bated breath, LoL! Fortunately, it did go out that day before the cutoff time, but December 1st brought on all of the beginning of the holiday madness at the post office, so things are just slow now. That's something I think I'll have to remember for future swaps.