There are a few of the proper occasions on there too, decorating the tree, a Christmas market, building a gingerbread house. But the ones I like best are wrapping presents together and donating old toys, because they are the sort of thing that only happens if somebody suggests it.
Fifteen ideas. Print it, stick it up, and get to whichever ones you get to.
Free, nothing to sign up for, and there is one for every month if you would like the rest.

