Here are some things that are in my room that just won't work at all in the RV, a big desktop computer, a large reclining chair, two desks and a desk chair. The computer will become a "family" computer, available for the kids to use whenever they need or want to use it. The room itself with its desks and chairs can be a "study and crafts room" I think. Other than these things most of what is exclusively "mine" at the house will easily go into the RV or into the garage or just stay in the closet of the "craft room." :-)
Please note all you people who are about to say how crazy I am, I did say that I was conducting an experiment here. It may well turn out that I do not like this sort of thing after all, I don't know for sure. Although the several times I've lived in very small spaces I did actually like it pretty well. The key to this is to keep the amount of "stuff" in the space minimal. Right now I like the way it works. Of course I'm cheating by still having a bunch of stuff in a big house, and I'll be using the bathroom facilities and cooking in and eating in the house, and just plain hanging out there quite a lot too. In fact my vision is that this will just be a detached bedroom set up, more a matter of laziness on my part than anything else. But if it seems to work I might go ahead and get rid of my excess stuff "officially." Wish me luck!