When you put your fine gold and silver neck chains away gently and with great care, does it seem as if the jewelry goblin and neck-chain monster get into your things, causing twisting and tangling? We have the solution to prevent such nasty tangles. To keep fine neck chains separated and from getting tangled, cut a plastic drinking straw half the chain's length; then snip off an extra quarter inch. Open the clasp, drape one half through the straw, bring the other part around the outside and refasten the clasp. And that's the On The House tip for today.