December: National Write a Business Plan Month. As a freelancer, you are a business owner, so consider writing a business plan this month!
December 26: National Thank-you Note Day. It is a day to get some note cards, paper, pen, envelopes, and stamps to write special thank yous.
December 29: No Interruptions Day. This is a day set aside for getting organized for the new year by cleaning up your workspace without interruptions.