Hope you don't mind me intruding to ask a question. We live in a 200+ year old house semi-detatched to a chapel and backing onto a field. As soon as we put the heating on the mice come sauntering in. We have had success with poison in the past but the mice spread the poison everywhere and I'm nervous about the dc's getting hold of it. The mice also die in the wall cavities and under floorboards and stink the house out.
This year we have got some wooden snappy traps but the mice a breeding faster than we are killing them and sometimes the mice manage to eat the peanut butter off the trap and the trap doesn't go off. We have a sonic thing in the kitchen but it doesn't seem to have any effect. Has anyone got any suggestions of something else we could try? DH wants to get a cat but I can't stand them although would be better than the mice I suppose if the cat killed the mice.