Safe for humans, pets and the enviroment
Pour vinegar around the children’s sand box to keep cats (and a few other critters) from using it as their litter box. Reapply about every two months just to be sure. Also you can sprinkle a little vinegar on your garden paths and patios to help keep cats away.
Grow mint and/or basil which repel flies, and smell good to humans.
If you have problems with ants and other insects invading your home, they are probably crossing your doorways and windowsills. If you pour vinegar across the opening sill, it stops them from crossing.
1 handful lemon peel 1 cup (250ml) warm water If you have a serious problem with ants, the power of lemon will persuade them to move to another location. Throw a handful of chopped lemon peel into the food processor and while the machine is running, slowly add the water to make a lemony liquid. […]