We always did 2-4 days before Christmas growing up because we got a real tree and it would only last a week max. Now that I'm grown up I thought it was anytime after December 1. And it was bad luck to leave it up after 'the twelve days of Christmas'.

DH and I were discussing this at breakfast this morning - he thought the twelve days of Christmas referred to the twelve days before Christmas and I thought it was the twelve days after.

Then there's Boxing Day - isn't that something to do with putting everything back in boxes for storage??