Those creepy, crawly, 8-legged insects that seem to love dark attics and basements can become a nuisance if they bother your day-to-day routine. Spiders don’t like peppermint. You can make your own repellent by combining 10-15 drops of peppermint essential oil with a spray bottle filled water. Spritz where you see them especially in corners, high and low, on window sills, and behind furniture.