1.Salt Is Doing Damage You Can't See. Airborne salt settles into fibers and cuts at a microscopic level every time the garment moves. On silk and fine wool, it shows up as lost sheen, then thinning at the elbows and shoulders.

2. Those Yellow Underarm Stains Were Created Months Ago. Sweat is mildly acidic and oxidizes slowly. The mark appearing now was set the day you wore it. Cleaning promptly after heavy wear is the only real fix.

3. Never Store Wool Unclean. Moths aren't attracted to wool itself; they're attracted to perspiration, skin oils, and food traces on it. This is a common cause of holes in a cashmere sweater that looked fine going into the closet.

4. Plastic Covers Are Working Against You. They trap humidity against the fabric. Breathable cotton bags do the opposite, which matters a great deal here.

Any dry cleaner in Miami Beach worth relying on should be asking when a piece was last worn and what it was exposed to, because both change how it gets treated.