I saw the light of clay bar a couple of years ago.
Fantastic concept and product.
I'm not shilling for Griot's, but it's my detail supply source of choice.
Not only do I buy my clay from them, but I buy their liguid detail solution "Speed Shine" by the gallon. I probably mist and wipe the Mustang two or three times a week using Speed Shine.
It's an excellent clay bar lube also.
Everyone's already posted the most important things, especially "use plenty of lube". Clay is easy to use and you'll get the hang of it within minutes. (Just don't try to use it on badly pitted or oxidized paint. It works best on relatively smooth paint surfaces.)
Good luck!
btw: here's Griot's link
Griot's Garage At first glance it may appear pricey and frivilous with all the cutesy accesory products, but its core business of car car is top notch.)
[ September 27, 2003, 12:51 PM: Message edited by: doc540 ]