YIKES! Snake in Our Front Yard!

Ok this is not that unusual but OMG I was Hoping and Praying That This year we wouldn't have any in our yard. The kids are running all over the yard and I hate the thoughts of any snakes being around them.
Shelbie yelled at me that the Cat had something and she thought it was a snake So I ran outside and sure enough the cat had a baby Copper head snake! Arrgghhh! I Hate Hate Hate Snakes!
I wish i knew Something that would keep them OUT of our yard.