Skunk and other foul smells - mix 1 quart of 3% hydrogen peroxide, ½ cup baking soda, 1 teaspoon liquid soap. Rub into fur and rinse with tap water. Do not store this mix! It will explode. Spray citrus oil and/or hot garlic-pepper tea to repel the animals.

What seems to work pretty well for opossums, armadillos, skunks and other beasts is 1 cup of human urine and 1 cup of household ammonia in a gallon of water. Spray the problem area as needed. Other highly fragrant materials like mustard powder, hot pepper, and finely ground tobacco will also sometimes help.