 Or if you just want to start prevention, you can spray it around the exterior of your house, and you can actually spray it on the interior also, like any of the areas where you're prone to have spiders, in your basement, where you have your boxes and storage stuff, up in your corners. I notice at my house I get them up in the corners of all my ceilings. Right. Down in the basement, those joist pockets, there's always spider webs there.