If any of you could clarify the purpose of each of these and the order of application...

• Polish - Slightly abrasive, when do you use it?
• Glaze
• Sealant
• Wax (I know what this is, just tell me where it fits in the application process.)
• Clay (Again, just the order...)

As far as I can tell, wax is the final step - the way to keep everything you did in the previous steps protected. Clay is used to remove what washing can't and then to fill in any imperfections in the paint. Is clay an alternative to polish and glaze? Someone said sealants are alternatives to waxes - how are they different?
Also where do you order your stuff online, b/c my local stores have NOTHING! Let me know if you have any other suggestions or steps to a great finish that I've left out.

Thanks alot!