Here's a
link to an article at
www.CreativeMac.com that describes steps to "age" your own photos.
Though written for Photoshop on the Mac, the steps are easily translated to the Windows version of Photoshop.
Seems a bit odd to be posting a link to "create the havoc" that most folks who visit this site normally want to "undo," but for we photo-art enthusiasts I suppose we can stretch the butterfly net a bit to include some of these techniques in our bags of tricks.
Hey: Maybe we should "age a few" images... and then turn them over to the Retouch experts to fix! Now that would be an interesting "cross forum" challenge!
If you're into this type of thing, but don't have the time, patience or expertise to age images manually, here's a highly functional 3rd party
plugin called "Old Movie," that for $20 is a steal.
Keep having fun!
~DannyR~