http://www.ecmag.com/?fa=article&articleID=10827 Do any of you have any comments on the efficacy of these types of products? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20091205/97a9f51d/attachment-0002.html>