A few years back the townhouse/rowhome I was renting we had no problems till the neighbor moved out in the late fall
. They had mice and the mice just moved next door to our place. Tried snap traps and glue traps...just wasn't good enough.
A buddy of mine told us what he does in his cabin in maine when he leaves to come back to jersey. He has a kitchen garbage can with the "tippy" lid...if you drop something on it the lid turns inward and the garbage falls in. Well he put 2 gallons of anti freeze in it, a 1x4 piece of lumber as a ramp up to the garbage can and smears a thin trail of peanutbutter up the ramp and a big glob on the lid of the garbage can. The mice walk up the ramp step onto the lid for the peanut butter and get dumped into the garbage can, drown and the anti freeze keeps them from rotting.
Simple and effective