When I worked at the apartments an exterminator told me that instead of trying to poison spiders, the way to deal with them is to remove their webs every time they put one up. They get tired of it and go someplace else. My experience: For years, every time I walk around the house, I have to remove a spider's web. Sometimes it moves a small ways, but invariably returns to the same spot. Also, in my kitchen, a spider took up residence under the wooden shelf I fixed over the sink. Every night, I run a damp cloth over the area and every morning I still feel a spider web against the back of my hand when turning on the water. But I can never spot the spider. This has been going on for months. I don't intend to kill any of them. I do wish they would heed that exterminator's advice.