I use a product called RAMIK Green. It is little green balls that I use in my home. It is manufactured for HACO Inc. PO Box 7190, Madison, WI 53707. I get it at my local hardware store.
It is the best thing I have ever found for mice. When I see one of the little critters (or their trail) I start putting the RAMIK until I don’t see any evidence of them.