I have two rooms actually. One is more of a library/display/research/computer/pay bills sort of a space, and I think of it as the "clean" room.
The other is where things get down and dirty and where the most fun is had.
The left wall: library unit & models.
The center wall: display cabinet.
Right wall unit: U.S. Army stuff.
Right wall unit: books, computer work station, pay bills......sigh.
Closet stash.
Right wall in workshop: 1/6 scale M5A1 underway.
Center wall in workshop: tools and neat stuff.
Left wall in workshop: 1/6 M5A1 underway.