Help with claying car for the first time??

After hearing great things about Zaino and seeing some awesome pics, I want to try it this summer, but I also want to clay my car to get rid of all my old wax. I'm kinda new to detailing, could anyone give me any general pointers, especially on claying, what to do, what not to do, etc. Thanks.

If you drop the clay bar on the ground, DO NOT use it.

Don't rub the clay on any dry spots, make sure the spot you are going to rub is nice and lubed.

And to decrease waterspots, take the sprayer off the hose and let the water cascade off the soap.

Hope this helps a little. Rob