I have a storage area behind a kneewall accessible only by removing a panel held in place with screws. It's opened in the spring, Fall, and Winter... once each. It's well insulated, dry, and holds window air conditioners, Xmas decor, and a window screen for my office. Nothing "nutritious... but definitely a cozy little hideaway... or hibernation spot.
Is there anything I can spray or throw around that will discourage mice from using this area as a plush winter resort? I noticed signs that I had "visitors" this past Winter and I'd like to pull the welcome mat in before they bring their relatives this Fall.