For weathering... panel lines, etc?
that album is still blank. There are some very talented individuals.
If you have several techniques you would like to share with the group, you could create an album in the Hints and Tips section with your name and have all of your tips under it. Up to you really. Here is one that needs to be filled.
http://rongeorge.com/modules/Gallery/tipspanellines
A few pictures showing how to do panel lines, etc.