One of my favorite Catholic traditions is the blessing of the home at the New Year. It's a wonderful way to start the New Year and I recommend it to you.
Here's a link (click here) to the Prayer of Blessing that you can do at your home.
There's also the tradition of marking the lintel of your door with the following 'blessing':
20 + C + M + B + 12
With a piece of chalk, write that on the lintel of your front door, or maybe on the door leading into the room where your family spends most of the time: like the kitchen or family room.
The letters stand for the first names of the three Wise Men who came from the east to see Jesus. While the Bible doesn't record their names, a document from the year 500 does: Caspar, Melchior, and Balthazar. The blessing ask for their intercession on your home and family.
The letters also stand for a Latin blessing: Christus mansionem, benedicat. "May Christ bless this house."
Peace and blessings on you and your family this New Year!