Didn't we used to have a 'General Technology' sub-forum? Anyhow, I'm posting this here because I don't think that it quite fits into 'Materials Engineering'. W gave me a really neat little micro-fibre cloth about 3 years ago, for cleaning my glasses. I also got one with my MacBook to clean the screen. Anyhow, this thing has been kicking around in my pants pocket ever since I got it. It looks like the oil rag that you'd find in a mechanics' coveralls, yet it still cleans like crazy. My question is, how you I clean it. The packaging said that it should never get wet.