Leveling truck for camping

With my setup i have a RTT, and a hammock that hangs off the side of truck, and have table that mounts to swingout. When i get to were want to camp, I usually use some 12x12x1 pieces of wood to some what level my truck. Is there a better product for this purpose, There are alot of things for RV's just seeing if anyone here as a solution they really like.

 

scissor jacks?

 

I have an RTT and use these http://www.towshop.com/store/pc/Tri-Leveler-Pair-for-RV-Motorhomes-and-Travel-Trailers-p1463.htm They work well, are cheap and pack compactly. But 80% of the time I don't need them. My TRD OR has the tip and tilt indicators and I just maneuver until I'm level according to those, and it seems accurate enough.