Where's the damp hiding?
Damp builds up in closed spaces, especially against outside walls in winter. These are the usual spots.
Wardrobe
The sign: Clothes that smell damp even when they're clean, and white bloom on leather bags and shoes.
What helps: Place one on the wardrobe floor or shelf. Recharge it when the beads turn green.
Shoe cupboard
The sign: Shoes that never feel fully dry, and a stale smell when you open the door.
What helps: Lay one on its side to soak up the moisture wet shoes bring in.
Bookcase
The sign: Wavy, soft pages and a musty smell on books near outside walls.
What helps: Stand one at the end of a shelf to keep the air around your books drier.
Drawers and boxes
The sign: Spare bedding and stored clothes that come out smelling damp.
What helps: Lay one in the drawer or box with the things you're keeping.