Here's an action I cooked up to take a texture brush (paint, ink, grunge, etc.) and paint it over the whole canvas uniformly to give you an interesting texture that you can use for, well, pretty much anything!
I wanted this to be compatible with PSE, but since I don't own a copy of it myself, I can't be certain that it will be. Because of the compatibility issue, there are no stops in the action, so you have to have everything set up right before you begin. It's not too complicated. :)
1. Load the action and brush files into PS or PSE.
2. Choose the brush you want to use. Press B, then click on the one you want in the brush chooser.
3. Set your foreground and background colors.
4. Play the action.
That's pretty much it! If you want to get more complicated and try using it with your own brushes or you want to change the settings of the ones I supplied, there's an "instructions" text file inside the zip which will give you more tips.
I know the colors in the preview are pretty ugly - lol I chose them only to demonstrate that you can actually use two colors - even contrasting ones - and still have them blend well together.
Download from Mediafire Here