I did the no tree one year and I felt we didn't have Christmas that year. It was like the year the hold family went on a vacation.
So now I have a little tree about 2 ft. tall that is decorated and I keep it in the closet except at Christmas, I get it out and sat it on the bar in the den. That is all the decoration inside that I am doing.
Since we live in an area that is promoted as having one of the best drive thru Christmas lights in TX, we have to do a little bit outside. We aren't putting all the lights on the house or trees this year, just a few big lighted things like the angel, tree with lighted boxes, etc.