What is the best option to keep mice out of TT. Do the peppermint sprays really work. I don't want to use moth balls or anything toxic. I do have the bottom sealed pretty good but a mouse can always ...
Best is to prevent entry in the first place. Big box stores sell rodent proof spray foam. Add steel mesh, steel wood it something like that that they cannot chew through followed by the foam spray and they will not be able to get in.