How do you guys keep traction?

[charx2]

I'm just wondering how everyone here weighs down their bed or rear end. I'm curious as to a way that does not look completely like trailer trash, like tires and a bunch of heavy junk in the bed. I would really like to see what type of power my truck has but I can't get any traction what-so-ever! The tires are pretty bald and i have 3.07 rear end. Stomped it the other day from a stop and burned rubber for 150ft. I have a posi and 3.73 waiting to be installed (ran out of funds). I would just like to get some weight back there to see what she has from the start! So, how do you make it "bite"?