Traps in the closets and cupboards, a cat and a dog, and time. Eventually (about 2-3 months) we had a confermed body count of 30 mice plus many MIA.
We never truly got rid of every mouse over the years. Every fall as the cold air approached, the mice would come into the house. But they would not last long.
As for the dogs ... they can catch mice but are better suited to groundhog removal.
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