ThriftyFun is one of the longest running frugal living communities on the Internet. These are archives of older discussions.
How do I get rid of fungus gnats?
Tiny Black Bugs in the Kitchen
Gnats on Houseplants
How to Get Rid of Gnats in a Bathroom?
Getting Rid of Toenail Fungus
Getting Rid of Tiny White Biting Bugs?
Solutions for Flying Gnats