Update: Comet Lovejoy (discovered in August) is continuing it's holiday show! I'd heard that this comet could be seen during December, but it wasn't expected to brighten enough to be seen by the unaided eye until February or March, but it seems that has changed! If you're located in the Northern Hemisphere, you maybe able to see it thanks to the glowing green caused by the sun's solar winds pressing against the comet's molecules!
The comet was first discovered and named for an Australian viewer, but the comet is approaching perpendicular to earth, which means that it will be becoming a Northern Hemisphere object very soon!.
The comet is already bright enough to be seen through binoculars (as a hazy glow) but it will be much brighter by mid-January, to the point where it will even be visible in some city suburbs!
It'll be hanging low in the late-night southeastern sky, so make sure to take a look!
If you'd like to find it, try printing this guide to locating it! -> http://www.skyandtelescope.com/wp-content/uploads/Lovejoy1_BW.pdf
The best way to glimpse the comet is using binoculars as it travels through the low southern constellation Columba, the Dove, about 30 degrees south of the constellation Orion.
Good luck finding it!