my pit box is like 4 boxes or 5 if I am racing my TC.
The main box is 2 boxes that latch together, the upper half has my batteries, charger, power supply, screw boxes, motors, random small parts, tire glue (curretly racers edge fusion glue) quatars for race numbers, scoket wrench set, and a li-po sack.
The bottom half has my rotary tool (i.e. dremel, but one made by a differn company and way cheeper), tires, pit towel, rags, some tires, motor cleaner, traction compound, 3rd hand tool, my hex wrenches, and other tools that get me though a race day.
The nex box is a red handheld tool box, that has my soldering iron, some more tires, and even tc tires and more traction compound for the TC wheels.
Then it also has stuff that will more then likely never be used again (I might sell that stuff since I have no use of it), and that includes an old ni-mh peak charger, motor lathe, and a battery equalizer for side by side pack.
The finnal box is the box that my BJ4 WE came in, it holds most of my truck tires that are for races only, as my pratice tires are in random places in the other boxes.
The other box that is used every now and then, is the box that my TC5 came in that is used to hold extra parts for the TC and also will noramly have about 3 to 4 sets of tires in it as well.
I also have a fold up table, extension cord, power strip, and chair that I bring with me to every race. Although I don't really need them most of the time.
I want to get a pit bag, but my curretn set-up works fine for the time being. But yeah I have a bunch of stuff that I take with me on a race day, since I never know what I might need that weekend.