Add Cool Textures

From Photodoto a tip on how to add textures to your photo:

An Easy way to add imported textures, (old film grain, rust, etc) to your photo from Photodoto http://photodoto.com/a-very-basic-guide-to-textures/

and a flickr page with free textures http://www.flickr.com/photos/30886604@N04/