But if you don't like using chemical insecticides around your house, you can easily make your own natural spider repellent instead.
This simple recipe will work to both kill and repel spiders.
1 cup of vinegar
1 cup of pepper
1 teaspoon of oil
1 teaspoon of liquid soap
Mix together and place in a trigger spray bottle.
Shake the bottle and spray around your windows, doors and any other areas that are prone to spiders. You can use it both inside and outdoors.