I'm just wondering if anyone else has seen the Tide Buzz ultrasonic laundry cleaner? I grabbed one as a stocking stuffer for $9 with the intent of seeing if it could be reconfiged into a more useful board cleaner. I did clean a few rings with a few seconds of buzzing in a soap water mixture in a glass. It has a surprising amount of power, if you hold it against a finger it will burn in about a second. Just thinking about grabbing a Tupperware container and trying to clean a board etc. Does anyone have any suggestions as to fluids etc. That's the one thing I have to watch as my wife is wildly allergic to most of the chemical we'd use. Dave -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist