Something I really wanted to have in my bedroom was a set of bookcases and a fireplace. The bookcases would help us with storage issues, books, papers, etc. and the fireplace would give a
good ambiance to the room plus the needed warmth on winter nights.
For me, this was a challenged project, the first bookcases I've built, there were many rookie mistakes that by talking about them might help you avoid getting into those same issues if you are thinking of building your own.
They are shallow bookcases that take advantage of the vertical space, made out of plywood and using Kreg tools at its best.