For exterior:
1- Wash car. Use two different mitts. 1 for upper section of car, and one for rims/lower sections of car. This will help you avoid any scratches.
2- Dry car thoroughly. Use a water blade and chamois. Not everyone has access to an air compressor, but if you do, you can blow dry all the water out of all the crevices in your car...helps dry rims quickly too.
3- Clay the entire car. This will help remove any contaminants from the paint. It will also get the paint as smooth as a baby's ass.
4- Compound car. If your paint is in excellent shape then I would skip this step. This will help eliminate scratches and brings out some shine. Use a machine only if you know how. Remember to tape off mouldings and door handles and window trim. Otherwise you can compound by hand.
5- Polish car. Polishing will bring out the color and make the paint very shiny. Again, if you know how to use a machine properly then go ahead, otherwise go by hand.
6- Glaze car. Using less is better. If you use too much you'll have a hard time getting it off. In addition your paint surface will look like it has a haze on it. Just rub it on with a terry cloth towel, and rub it off with a separate clean rag.
7- Finally, wax the car. Carnauba wax is the best wax. Use circular motions to apply wax, and use circular motions to remove wax. Apply with an wax applicator (sponges covered with terry cloth towel are best) and remove with clean terry cloth towels. Its better to use several thin coats rather than one heavy coat. Put 2 or 3 thin coats of wax on hood, roof, and trunklids.
Thats about all I can think of for now. If anyone has any further questions please feel free to PM me. Hope this helps.
Alex