I try to be selective in what I bring home. And I try to rotate my stash, getting rid of some things on a continual basis, which makes room for more coming in. I have made or finished some wonderful things from fabric or other peoples' UFO's that I got free or cheap at a sale.
However, the past week I have been helping a friend organize her mother's stash due to health reasons (of the mother). It is a monumental task and has made me re-think my priorities in time, money, and space.