This year will just be dh and me and 1 teen.
We will still make it special and christmassy as we do every year whether we're entertaining or not.
We get up around 8 and open our presents and dd's stocking and santa presents, yes, he still comes to our house 
Dh makes coffee and we have something sweet like stollen with it, taking our time looking at everything. DD eats chocolate from her stocking.
At around 11 we have a big brunch at the kitchen table using our christmas cups and plates and our christmas table runner. We always have champagne and fresh orange juice and real coffee and we will have either a full cooked breakfast or american style pancakes with crispy bacon and maple syrup, dd can decide.
In the afternoon we will watch movies with the fire lighting, drink wine / baileys, etc. speak to family etc
we eat dinner in the evening at around 7pm and we will get dressed up a bit and set the table in the dining room with candles etc and light the fire in that room too. We play nice music and have a leisurely 3 course dinner with lots of wine.
Then we blob out in front of the tv at about 10pm
It's pretty much the same routine as if we had guests (which we do most years) and it feels lovely to have a tradition of doing things this way each year