"Lifestyle website Thrifty Fun says one of the best ways to get pet accidents and other unfortunate stains out of carpet is with a liberal dousing of plain white shaving cream. Let it sit for about 15 minutes, blot with a damp towel, and the stain should disappear."
It worked on someone's tan carpet after a dog... um... "messed" on it 18 times! Maybe it could work for any December carpet disasters you may have? If your family is anything like mine, you'll need it for the red wine and green sugar cookie icing spots!