Cleaning the Build Platform

What's the recommended way to clean the printer platform to remove dirt, dust, oil, fingerprints, etc. without damaging the coating?

Should I just use a little soap and water, or a solvent like acetone or alcohol?

I've been using a damp paper towel (with another to dry it after) with good results. 

<p>I have been using 90% rubbing alcohol and kim wipes.</p><p> </p>