I found a free stock texture website called urbandirty.com. They have a huge variety of sweet textures that you can use in projects.
I experimented with this photo for our wedding. I added a cross-process effect, then added a texture screen with a low opacity, then warmed it up with a photo filter effect. It turned out really nicely for one of my first texture tries.
Here is the texture I used; I think it's cement.
And here is the final result! I love it because of the vintage look and feel. The colors turned out nice and warm, and I love how Landon's hair just glows. Yes, you could say we are in love....with textures! :)