S.M.
Hi there! For ants and some spiders, put a little cornmeal where they are coming from. This does the trick and it's also kid safe. But a pest control program really solves the problem. We use Antac. They come every other month and just spray outside the house. We haven't seen ants in years, only occasional spiders. They have other treatments for that, but I'd rather keep the chemicals outside, so I don't mind the occasional spider. Good luck!