Fingerprints, perspiration and body oils can harm a finish over time, especially on chairs. Plants and flower nectar that touch the finish can also cause permanent stains. Placing hot items on furniture can cause a chemical change in the finish that results in white rings or spots. Keep plastic off wood Do not leave plastic objects lying on wood surfaces. Color from plastic tablecloths, appliance covers, wrappers, place mats and toys can leach into wood over time.
Plastic can also stick to a finish, damaging it when it is pulled up.
Guard against scratches Lift, don't slide, objects on wood. Place objects on trivets, tablecloths, doilies or others covers to protect the finish. Use felt bottoms on lamps and other decorative objects. Avoid brightly colored felt because its color could leach into the wood. Some experts say brown is the best color choice.