I have found that the very best solvent to remove nicotine stains is denatured alcohol. It is not only effective but it does no harm to painted finishes. Miles B. Anderson, K2CBY. 16 Round Pond Lane Sag Harbor, New York 11963-3821 Tel.: (631) 725-4400 Fax: (631) 725-2223 Email: k2cby at optonline.net