my house backs into a big park that also has a stream. On a few occasions i’ve seen a mouse climbing into my retaining walls along my driveway. I understand that with the park and water I’m more prone to seeing all kinds of creatures. I’m afraid that it’s only a matter of time before a mouse gets inside with frequent openings of the garage door. i’ve read about spraying peppermint oil and I will try to seal the holes. Can someone recommend some ultrasound repellants that work? What else can I do to keep them away?