Who doesn't love a spicy citrus treat or drink? Snakes, that's who. Create an effective snake repellent with just lime juice and hot pepper extract. Dilute equal parts of the two in a gallon of water and apply around the perimeter of the property. This nontoxic solution will linger for a while, and snakes will notice. For the brave few who try to cross anyway, the pepper extract causes discomfort on the scales and discourages any further encroachment.