This must be housekeeping month! Ravena asks what to do about musty closets. My tenants were elderly and when they moved out, they left the closets smelly of must and moth balls. I have scrubbed every square inch of the closets and they still smell.
Mac says: Scrub them again, using a bleach solution as suggested on the bleach label. If that does not work, place a pan of baking soda on the shelf and on the floor for a couple of days. Just for good measure, hang a couple of dryer sheets on some coat hangers. If that does not work, prime the closet with BIN alcohol primer and repaint the closets. If the floor is wood, coat it with shellac.