No matter how tempting, never ever click on your own ads. This is probably the easiest way to get your site suspended or banned. It's a form of click fraud, and Google is very good at catching this, even if you think you're hiding your tracks.
Don't let anyone who uses any computer in your home click on your ads, either. Make sure your significant others and children are aware of the rules, or you could jeopardize your standing with Google.