When I was a kid, (and that's a LONG time ago, lol) we used to call it 3 Kings day, and we always kept our Christmas tree up until at least then. Of course it was a real tree, and we always put it up on Christmas Eve day.
Jonna, I have some good friends from Mexico, and I had some Ponche on Chistmas eve, and again on New Year's Eve. It's really good.
