I just remembered one of my favorite fibery holiday things. The Drops Design 2012 Advent Calendar is under way. This Norwegian company offers a free pattern every day in December leading up to Christmas. The link's to the American English version. There are versions for a number of other languages. The patterns even include an estimation of what it would cost to knit them using Drops yarns.
I printed out yesterday's pattern because it reminds me of a sweater I knit several decades ago.