Two ten foot 2x4s screwed into the studs, then rubber hooks(similar to those Steve pictured. Total cost about $35. I left plenty of room between the hooks so the boards could be taken off without hitting each other.
Javony, I noticed that too. I actually didn't like the trip. Just after I took this pic, I sold it. I have an '06 Marius which I love. In the pic it didn't have any bindings cause I was waiting for a warranty replacement of my 3DS bindings.