If you have small pets like hamsters, gerbils and the like, this recipe is cheap and works great. I have a little one and her cage is mite free. The stuff in the pet store is $10 for a couple ounces. You can make a gallon for that with this recipe:

THE HOMEMADE ANTI-MITE RECIPE FOR SMALL ANIMALS


1 pint of room temperature water
1 Tablespoon of Witchhazel
1 Tablespoon of Listerine (not flavored)