Great question. If you can ski switch, then you have the 180 down, then the 360 (on rollers) 50/50 on a box, box slide(90-degree turn), Straight air, Shifty, safety grab, start to do rails after you get the box slide down (there are all kinds of forums on how to do this), 540, 720, tail and nose grab, truck driver, blunt, nose and tail butter (if you have twin twips).
http://www.slvsh.com for a list of grabs.