Allow me to share another example of saving a photograph by applying a texture. Because of the pain and relative immobility in my left arm, I have not been driving since last October. Being in the passenger seat allows me to snap a few photos through the car window - hardly the best way to get a good photograph. This is one from last fall - one that clearly needs a lot of help. Hmmm, what to do ... Ah yes, make a texture, apply it to the photograph in Photoshop Elements 8, tweak it with different blending modes to get different results, save the ones you like. Easy peasy.
Below is the texture I created in Photoshop Elements using several different Brush Tools.
The Blending Mode "Linear Burn", a little adjustment in Opacity, and removing some of the texture's effects with a Layer Mask produced this result!
I am working on a collection of textures that I hope to have ready to present here in a couple of weeks. I still have to test them on different types of photographs to make sure they produce great results for you.