Most hairspray stains or overspray can be removed from most solid surfaces with a simple mixture of dishwashing detergent and warm water. Use a sponge or clean cloth and work the residue off of the surface. For set stains, rubbing alcohol on a clean cloth will break it down enough to remove with the sudsy water. If you remove hairspray from wood, make sure that you polish or wax the wood as soon as possible after cleaning.