The best way to clean the mouse is for you to use the damp cloth, it will work just fine, if you would like to clean the whole area of the mouse. As for the side grips with the dimples, we can suggest using a soft bristle toothbrush after the mouse has been wiped with a damp cloth. This will help loosen up most debris. For the debris inside the scroll wheel gaps, a few bursts from canned air should do the trick.