creating realisic textures without using photos

wow not a single reply or view in a month seems like it was a waste of time.

The view counter is broken on this site so there may have been many views. Thanks for the tutorial and info about GIMP grunge brushes.

in my first click I got a 167px wide image… way too small to be seen. Now I clicked the image properties and saw that, for some reason, Firefox has it scalled from original size. Clicking it twice fixes it, but its not obvious…