Avoid the waxy buildup of commercial furniture polish by making your own. Mix together 3/4 cup of olive oil, 1/4 cup of vinegar, and the juice from half of a lemon. Stir well before each use, and apply a small amount to wood furniture using a soft cloth. Buff with a clean cloth, or let it air dry. The wood will be nourished by the oil, cleaned by the lemon, and refreshed by the vinegar.