One fall, as the weather cooled, I started getting mice. I trapped 2 or 3 a week for about a month, it was really annoying.
Went to the shelter, came home with a cat.
Now the house is free of mice. I usually get one or two every fall, but this year I didn’t get any. The cat is a better mouse repellent than anything I’ve ever seen.
I add to make a password last fall that had the requirement “numerals or special characters”. A password with both numerals and special characters wouldn’t work.