Alchol and dryer sheet.
I have worked with computers for well over 20 years. I have found that when I do my monthly cleaning of my home computers and other electronics is to mix a half a capful of laundry frabric softener and a gallon or a little less on warm water and ring a soft cloth out until it is damp and wipe down the outside of of all the electronics and computers. (DO NOT USE ON THE GLASS!) Follow the manufacturers guidelines for cleaning the glass!