That's straight to the point!!
Not easy to say though because I do every photo a little bit different depending on what style I'm trying to achieve. That said, I normally process my RAW files into smart objects and layer a couple together. I use overlay a lot as well, stacking a couple of layers on top and playing around until I get the look I want. Smart objects is your friend!!
I like this one below because it was one of those random moments when you think, quick there's a good shot here!! I wasn't quite ready to go, so had to rush pretty quickly to get the shot, and one of my speedlites wasn't firing so I did what I could. Handheld at 1/60sec lying on the ground wasn't that easy, but Nikon's VR system does wonders! (Shot using a 70-200mm 2.8 VR2)