I use about the same setup... The big flat fishing lure/worm boxes (for tools, jags nipples, breechplugs, etc..50cents @ garagesale.A smaller waterproof softpack cooler($6walmart) w/extra zippered comp.for powders/measures, caps,patches etc. and a cheap canvas tool tote for range use. Then larger airtight rubbermaid storage boxes for home. I take a small camo fannypack with whatever I need when I go to the woods. LOL I guess I'm just as bad (or good) as everyone else about packing/storage. But it'll pay off in the end. I even keep a small carboard checklist on the inside window of my fannypack. One time I got to the property where I hunt. (Walked!) And I didn't have my powder measure!!! I used the plastic cap off some spray scent and eyeballed my measurement.... image that.
chris