martyh

As a window fitter i have to clean the glass of new installations everyday and leave them sparkling or the clerk of works rejects them .It doesn't matter what cleaner you use any will do ,it's what you use to apply it that matters .Spray glass cleaner on to the glass and wipe off with standard paper towel making sure to wipe off all the cleaner leaving it on the glass will result in streaks ,the same applies if you are using plane soapy water which is just as good as any shop bought glass cleaner