MommyK has some wonderful ideas.
You’ll have to assess your husband’s openness to you creating traditions according to your faith.
We always have an advent wreath on the kitchen table. It’s basically a plain green wreath decorated with a purple ribbon and then the four candles – purple, purple, pink, purple. We light the appropriate number and colors each night at dinner. The wreath can be as small or large as you like and are comfortable with.
If you and your husband are open to it, hold off on the Christmas decorations until a day or two before Christmas.
If you decide to put up a Christmas tree earlier, however (we are this year for family reasons), divide up your ornaments and place a few on each day of advent. As you get nearer to Christmas, add the nicest or most treasured ornaments.
The feast of St Nicholas (Dec 6) is ripe with traditions and great fun even for non-Christians. Chocolate coins. Oranges. Ginger cookies. You can leave little treats in your husband’s shoes – if you have dogs, put the shoes in a place the dogs can’t get to

and explain the tradition and connection to the modern day Santa Claus. Of course, you’ll need to do a little research to learn more about St Nicholas and these traditions so it has more meaning for the both of you.
When I was in college, my friends and I made bags of treats and tried to anonymously leave them on people’s doorsteps in the wee hours of the morning. It is also a good day for making charitable donations or doing works of service.
Whatever you decide, talk with your husband about it and invite him to participate in some of the activities.
Oh, and if you live in an area with a large Hispanic population, look for a special mass EARLY in the morning on Dec 12 (Our Lady of Guadalupe). Our parish has mass at 5:30 am with the Mariachis playing the music, and a huge Mexican feast for breakfast afterwards – yummmmmm
