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You might think spiders are tough, but they’re surprisingly sensitive to strong smells. For example, peppermint oil is like a stink bomb to a spider’s tiny nostrils. They’ll avoid any area that smells like a candy cane factory.

Other scents spiders dislike include vinegar, citrus, and eucalyptus. A quick spray of diluted peppermint oil around windows and doors can create an invisible force field. It’s like telling spiders, “Sorry, this zone is strictly for humans.”

Cracks and Crevices: The Spider Superhighway

Think about it: a spider can squeeze through a gap the size of a pencil tip. They don’t use the front door like a polite guest; they use cracks in walls, gaps under doors, and torn window screens.

4 Ways to Keep Spiders Out of Your House - wikiHow

Sealing these entry points with caulk or weather stripping is like closing a secret tunnel. Spiders aren’t magicians—if they can’t get in, they can’t stay. It’s architectural defense at its simplest.