I have tried everything possible to stop spiders and Hurray! success at last. Bought a large bottle of Peppermint Oil, 10 - 12 drops into a spray bottle. top up with water, fine mist spray around door and window frames and it works. We have certain times of the year when the little, not so little and the HUGE seem to pester the life out of us, now at the first signs out comes the spray.