Someone recently asked what they should use to clean their keys with. I've found something that works better than anything else I've seen for cleaning the keys and display of a keyboard: microfiber cleaning cloths. They sell these at Walmart in the electronics area for cleaning CD's with and in eyewear and camera stores for cleaning glasses and lenses. No liquids are involved, cloths will not scratch the keys or display and they are washable and reuseable.
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Jim Eshleman