To whiten clothes, pour 2 tablespoons of ammonia solution (3%) or pharmacy-grade hydrogen peroxide solution into a basin with 5 liters of cool water, then add 5-6 tablespoons of baking soda (either regular or calcined). Soak the items in this solution for 3-5 hours. You can also dissolve 5-6 crystals of potassium permanganate, 2-3 tablespoons of grated household soap, 1-2 tablespoons of vegetable oil, and 4-5 tablespoons of any shampoo in 5 liters of very hot water. The clothes should be kept in the basin with the resulting solution for 8-10 hours.If there is an old stain on the clothing, try to remove it with a mixture of vinegar and alcohol in equal proportions, and then wash the item with household soap.For white tights, knee-highs, and socks, place them in a warm solution of 2 tablespoons of borax in 5 liters of water for 2-3 hours.“1000 Secrets”.