turn off the TV, turn off the news, take a break from the sources of information on the interwebz that bring you stress.
Spend the next 3-4 days focusing on you and yours.
Take the time to tell them that you love them. (Even if they intentionally drive you bat shit crazy.)
Take the breather, refresh your spirit and make your resolutions (if you do) for the next year.
Come back into the fight swinging.