I recently attended a workshop at Bullseye and they use a mixture of 50% white vinegar and 50% denatured Alcohol. I tried it and it leaves nothing on the glass. It doesn’t always clean heavy grime super well, so I cleaned with regular glass cleaner and then used to mix and got great results. Dries fast as well. Costco has a really good buy on lint free cloths that are great. When you dry them don’t use the antistatic dryer sheets.