I like doing jigsaw puzzles on cold winter nights. It was especially fun back in 2009 with my buddies Melissa and Josh... we'd stay up for hours just chatting and puzzling away. Now, I don't have access to puzzles - or the time to pull one out if I did have one - but I've found something almost just as good...
It's my favorite online version of puzzles, and there are all sorts of puzzles you can do. I like to put on an audio book or something and work away when I have a bit of free time.
Here are a few nice Christmas puzzles that you might like, too:
Christmas Street (Thomas Kinkade)
Christ is Born
22 days until Christmas!