A great way to dispose of excess alcohol-containing liquids for non-drinking teachers and their families:
Take two liters of cognac, add a tablespoon of Fairy "Sweet lemon". We put it all in a glass washer.
The glass washer on ethanol is much better than the isopropyl, which is now sold: it has a less sharp smell, does not form blurry divides on the glass, and the glass washer on cognac itself has a pleasant smell, even without odor. A freezing temperature of about -30 is sufficient for Moscow.