The first year of our married life (1963) we brought home a bare branch from the woods, fixed it upright in a tub, painted it white and hung a few baubles on it. It looked good and cost almost nothing. It was contemporary then and would still be contemporary today.
Then we had real trees for a while, shedding needles and getting ragged looking after a few days. We bought various baubles and tinsel and I made little fake parcels out of Oxo boxes covered in Christmas wrapping paper to hang on it. These were added to in later years as I used more Oxos.
When I had had enough of vacuuming up pine needles, we bought an artificial tree. That has been going for about 35 years and still looks good. It gets the original glass baubles and later plastic ones, and the Oxo parcels are stored away each year and reused. The wrapping on them is of many designs. An ephemerals archive could date them by the paper.
Storing the tree became a problem when the original box disintegrated, but we bought a zip-up bag for it which has been splendid. It has handles, so can be easily retrieved from the loft.