I've had lot of trouble with mice over the years. Luckily I'm not scared of them, but I don't want them in the house .
So I have humane traps all over the house, in every room.
Also, I read that they hate certain smells, mainly peppermint and lavender. So I scatter peppermint oil in every room, every few days, Near places where they most likely find their way in.
I've had far less mice since doing this.
When I catch one in a humane trap, I take them for a walk,
[ a decent length or else they come back] or a drive. Some of them have gone to live on the moors. 