PLEASE HELP ME......with my irrational fear!!

WARNING.....if you are as creeped out by snakes as I am you may not want to read this!! ( or maybe you  do to get some tips from the other readers)

OK so this has nothing really to do with being green I just need HELP!!!

A little back round info on me:
Not much really freaks me out. I can handle most bugs and animals, I don't like the sight of blood but I can get past it ....but put a snake in my line of sight and GAME OVER!! I don't know when this irrational fear appeared or why but it is here and so far I have not been able to shake it. I don not like to see them on TV, in a magazine, in pictures and definitely  not in my yard!!!

So far this summer there have been 4 sightings of the slithery little creatures in my yard!!!  First there was the " I am just sunning myself on your pretty rocks", Second was " I am going back to my home under your garage", Third was " I am just helping myself to one of the tasty frogs in your decorative pond" and lastly was the " I am on the way to a party and just using your driveway to get there". ( I am assuming the last one was on the way to a party cause it was Saturday night roughly 11pm and I almost stepped on it while on my way to retrieve the mail cause I just got home and where else would a snake be going at 11pm on a Saturday??)

Now I am assuming that the 3 sightings were all the same snake ( I sure hope they are not all different ones) but the last one was a very small snake....a "baby" probably. The first 3 all looked the same...black probably a foot or 2 long the last one I didn't get a real good look at but it was only maybe 4 to 5 inches long.

So here is where I need the HELP!  HOW DO I GET RID OF THESE THINGS????

I have used moth balls on several occasions but I am not sure they are working...for obvious reasons! So what else can I do? I know it is not practical to put a rope around my entire yard...but I heard that was a myth ? I am open to ANY and ALL suggestions!!

Usually when I want to know how to fix something I google my problem but every time I look at a website it has pictures of the little creatures thus creeping me out!  I would rather not use live traps...that pretty much goes with out saying, I would rather not use any chemicals that will hurt other critters around my house. But  right now I am pretty much open to anything!!! Snake charmers, Native American chants to get rid of them, old folk remedies...whatever.....SEND ME YOUR SUGGESTIONS!!!!!!

( I mean nothing could make me look more ridiculous than I did last night while running ..with my knees practically hitting my chest...while flailing my arms and trying not to scream so loud to wake up the neighbors!!)