Scratch effect?

I couldn't find this anywhere on the net, so I thought: "Let's ask the experts"
My problem is this; I want to add scratches to my image, but I can't find a scratch tutorial or plugin for Photoshop anywhere. When searching, I can only find tutorials on how to remove scratches, but I want to do the opposite...

So if anyone here knows how to do this, please let me know!

Well, a very easy way to do that, is to make a new layer, take a thin brush and use the pencil to make some white lines across the pic, here and there, up and down, short and long ;)

Then go to the layers palette and change the opacity, so it barely is visible...There you have some easy scratches...

Patric.