Don't get too caught up in building a bunch of various "systems", you know? Just makes it inflexible, and at a certain point you spend more time dealing with the many boxes of many purposes and keeping them organized than you would just throwing stuff in the bed, etc.
Oh I know. I had like three different boxes in my cart and then I thought...uhhhh, I really don't need this many boxes to carry the basics. Just one good-sized box. Once I get back outside and do some camping in the summer, it'll get fine-tuned and I can add/delete/modify as necessary.
Basically, I just want the tool box to be a general "grab n go" for trail cruising and camping, if im taking dirtbike with me somewhere, or weird emergencies (friend breaks down, dirt bike needs extraction from the woods, etc). Doesn't need to live in the truck if it doesn't need to be there kinda thing (so I'll probably put the jumper cables back under the seat.