30. The Instant Mashed Potatoes Trick
If you are looking for a super cheap, non-toxic and less messy way to get rid of mice, then you should try using instant mashed potatoes. Sprinkle a few tablespoons in the corners they frequently hang out. Once the mice consume it, the potato flakes will expand in their stomachs, and kill them fast before complete digestion.
Of course, keep your pets in mind. Ensure you keep the instant mashed potatoes away from your pets because it could harm them if they are placed carelessly.