I am looking for a home remedy(s) to keep outside critters out of the house. They invade our master bathroom every spring and do not leave us alone until it cools down. We live in Casa Grande, AZ. I am so tired of hearing: "You live in the desert, what do you expect"? I know there is a way to keep them out without harsh chemicals. My grandmother use to keep mint and some type of wood chips around, and in her house. I never saw any creepy crawlers inside her home. For us, it started with small spiders. Luckily we got rid of those *Knock on wood*, now for the past two summers we have iddy biddy little black bugs the size of this (.)dot, the exterminator cannot identify them, but says they are after the moisture. I would sure appreciate your help if you can share with us a natural cure to this problem other than harsh chemicals.