Much as I take out the garbage on a regular basis, sift through my books in search of duplicates, attempt to forget insignificant (or inconvenient) details of my past, I tend to accumulate objects and memories of no particular use to me. Various forms of "build-up" or residue are amassed in corners or crevasses, even though I have very few rooms in which this might happen. Fire is not a practical, or legal, solution.
Short of that, I think of the beauty of a hotel. There one could go with very few things and get by well for a week or so, not missing anything in particular.