Like Ray, I also have a small tackle box with a subset of tools for travelling. I found it easier to just buy anoter X-Acto, bottle of glue, tweezers, and so on than to keep swapping them back and forth.

For the model room I got an old serving cart from a second-hand store for the tools and paints. I made a dust cover from plastic sheet for when I'm not modeling, and can roll it under the table to save space. The big advantage is that it can be placed beside me, leaving the table free.

KL