Hi Liz
I have been in that house, so know what you are talking about. There IS a new product out there that is a poison but does not secondarily poison the animals that eat them. Agway was talking about it a couple years ago. Using individual traps will only kill those who happen upon them. Look into that poison, or get comfy with the mice.... I take no prisoners when it comes to rodents in the house, as they WILL chew wires, and that could cause fires, in addition to all the pestilence thy bring with them.