To deter spiders from staying or coming inside your house:
Add 20 or 30 drops of peppermint oil to an 8 ounce spray bottle first then fill the spray bottle with water (leave an inch of head space from the top)
Shake for at least 30 seconds before every session you use the spray bottle.
Around door frames ( all the way around )
You can also place a few drops of the peppermint oil on cotton balls and place in closets, kitchen cabinets, behind couches…. any out of the way place to keep spiders from returning.
Repeat the process once a week
You can plant peppermint near doors and windows to keep spiders away from them.