Here is my basic set up
(The Veto is ever evolving since it is a new bag to me still after a couple months and is currently about 32 lbs) I set up the Veto here going into heating season, so a lot of the refer stuff is tucked away in pockets, I suspect come summer, I'll be hating that and re-vamp the bag again a bit lol.
The Veto is my service bag, and residential furnace A/C replacement bag. I like an open top bag for service, so this one suits me better than the Tech LC.
The orange bag holds my 2 drills, and one handed saw, charger, and everything related like blades, drill bits, extension 1/4" 5/16" and self feed bits up to 2 1/8" After that, it's off to the truck.
The red bag, holds my sheet metal pouch and everything else metal working related (folding bars, dividers, seamers, duct clamps, chalk line etc.) along with a few other things that are beginning to make that bag heavier than I would like.
I have a few toolboxes on my truck where I store various things I don't use frequently. One for meters, manometer, etc . . One with soldering and brazing stuff. One with certain hand tools I use on occasion. I keep the veto at the door. I'm debating on getting rid of the veto or getting a smaller pouch type bag for service/repair with tools I use more frequently for that time of year.