I've gone thru a couple iterations of my storage and setup as I try to reduce how much I actually need. On our first trip out west I had two chests, a small rubber made box and just a lot of stuff. I've been slowly reducing this and getting better at organizing our gear. 1000lbs of storage boxes kind of bothers me personally. I just don't want my rig loaded to the brim with stuff.
On our trip out west my first load out looked like so:
I have two fairly inexpensive chests from Walmart. The large black boxes you see, and the second one I placed on the roof similar to how I did it when I went to TECORE, except cans up front.
We re-evaluated what we used and didn't use after our trip out west and got everything packed down into one storage chest for TECORE. I have a platform (not pictured) just like James. Also not pictured in the first photo in this thread is our spare tire, it sat up front behind the seats strapped to the floor. My idea here was center of gravity weight. I stuff spare parts and our guns and ammo underneath the platform.
I repeated this when I went to TECORE. But I felt like I was still wasting space. My goal was to not block my view out any of the windows.
On our trip to Kentucky I mixed it up more. I was able to reduce our cooking supplies, our tents and sleeping bags all into one storage chest now. Backpacking tent and backpacking bags make a huge dent on space savings compared to your average Coleman tent and sleeping bags from KMart. And have no removed carrying the chest on the roof.
One of the things I found handy was to remove the two plastic trim panels in the rear of the vehicle. There is a MASSIVE amount of inside the vehicle storage behind those panels. I was able to stuff jumper cables, all my recovery straps and flares and things in these side panels. I can easily reach in and pull things out with the truck loaded up.
I also store my tire inside the vehicle since I don't have a rear tire mount yet. This takes up some space having 35's. And I can't put the one seat back in the vehicle with it there.
I'm thinking long and hard about building a trailer to reduce what I'm hauling in the vehicle.
I have a cheap Stanely toolbox that I have extra tools specific to working on the trailblazer and then two divider boxes I picked up from Harbor frieght that I carry spare bolts, nuts, fuses, and misc things in. And of course a 150PC Craftsman tool case that I threw a few extra spare tools in specific to working on the Trailblazer.
Once lifted 03 Trailblazer on 35's, gave it up to travel the USA with my family.