On new year’s you are supposed to when it hits midnight you open the back door first in order to let the old year get out and afterwards you go over and open the front door in order to allow or invite the new year to come in. This is a tradition that I have been doing with my family and it’s a fun way to interact with them.
Being able to accept a new year is a key part of moving on and feeling as though one can obtain a free slate as soon as the year ends and therefore small traditions such as these make it easier for us to visualize the good and bad coming and going.