I use Windex, but was afraid to mention it on QB, just in case. It really works and we used it on computers at work with no harm. As long as you dry and wipe it off completely. You realize it has alcohol in it, but very little. Don't get any with vinegar, as that is an acid. It is only for really nasty, dirty, doesn't have much chance anyway, messes. I used it on a Singer Golden Touch and Sew that had smoke on it and that worked better than anything else I tried. Windex is a use at your own risk product as far as sewing machines are concerned. Not on the decals!!!!!!