Mice and rats will avoid your house in droves if they detect this odor. A fantastic proposal.

Constructing the Superb Natural Pest Repellent
Our insect repellent is a blend of 9% vinegar, lemon zest, garlic, coffee grounds, cloves, and an aromatic blend. Mice often avoid consuming these compounds due to their strong odors. The following methods may be used to create this repellant:
Things required: Julienned lemon
Garlic, one clove
Excessive coffee grounds
Cloves
vinegar (9 percent)
Setting Up: