The best way to get rid of mice and prevent them from returning is by sealing any ways for them to get into a home.
"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you suspect you have a mouse (or two) in the house, you might be dealing with a larger problem.
Donating an old car to a vocational school or a charity can be a good alternative to junking it. For a trunk that opens on its own, checking the relay and opener motor is a good first step before ...