I don't, and never will. I run sets (set collector), only have about a dozen sets, so it's not super massive. I run inside on the floor, just track in winter, and in summer put up banquet tables and add plasticville and temporary scenery, figures, accessories in the garage. New layout every summer. End of summer, I pack up until Christmas, then around the tree, then inside with more track (like photo) for winter.
As a toy train runner, I like the temporary quality of what I do.
