Use a vegetable peeler on the bar of Irish Spring soap and scatter shavings around plants and bushes. There's a product called Bobbex that works really well if you have something you want to protect though!
I read this from Gma Kirk: A farmer gave me a gross recipe for repellent...but it works. cup or two of urine, tablespoons of crushed garlic, and cayenne pepper, two eggs in a gallon jug, shake well, fill rest of the way with water. Cap and let age a week. Then you drizzle small stream around the perimeter of whatever you want to keep them from eating - works on rabbits too!
Get rid of squash beetles