I go to a window washer's supply store and buy huck towels for drying glassware. Huck towels are lint free towels used to dry surgical instruments. I used to use microfiber towels, but they are not as absorbent and seem to just move stuff around. To remove the glue left by gummed labels from glass, I use lighter fluid, then wash and dry. For cleaning mirrors, windows and other glassware, I mix a gallon of cleaner consisting of 1 pint of rubbing alcohol, 1 teaspoon of dish detergent, 1 cup of non-sudsing ammonia and water to fill a gallon jug. Fill spray dispensers from the jug. Unlike the leading window cleaning liquid, this doesn't leave a film on the glass.