Have you ever tried to wash off the stains of food and wine of your white t-shirt? If you have, you surely have bought some expensive detergent or a stain cleaner, which are loaded with chemicals, and still.
MOSQUITO YARD SPRAY: cheap mouthwash, 3 c Epsom salt, 3 cans of stale, cheap beer. Mix until salt is dissolved. Spray anywhere you sit outside, won't harm plants. Mosquitoes gone for approx. From Paul Harvey segment years ago.