Gently sand your paper/picture where you want distressed. Keep sanding until you have achieved the look you want. It is a little messy you will have residue, just wipe away.
My favorite is inking. I inked most of my layouts, there is just something I love about it. Must be that you can tell where one pattern paper ends and begins. Or just that it gives it a very bold look. Well whatever it is, I know I am not going to stop inking.
Inking is so easy to do. Take the ink pad and rub it around the edge of your paper . Use as much or as little as you want.