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.
Source: Pinterest
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.