On this page you will find some great work, still in progress.  These are the different methods that Tony Jaworski has been experimenting with, check them out.  You will need Adobe Acrobat to few them.

If you have any questions, send Tony an email.

Calgon
Coca-Cola
Distilled Water
Gringgotts
Kaboom
Lemon Juice
Olive Oil
Oxi-Clean
Rubbing Alcohol
TSP
Duplex
WD-40
Simple Green