Mix 3 tbsp denatured alcohol into 1 quart of water for dirty windows; the two-ingredient formula can make a simple glass cleaner

A university extension service suggests a simple homemade window cleaner. This effective solution uses denatured alcohol mixed with water. The alcohol evaporates quickly, preventing streaks on glass surfaces. Proper ventilation is crucial when using this cleaning mixture. Always test the cleaner in an inconspicuous spot first.