I stand in awe, Bob. I have four separate equipment bags/cases. One hauls my 4x5 Graphic with film holders, extra lenses and lens boards, filters, focusing cloth and other bits and bobs. This gear actually takes up two cases. Norwood Director and Weston Master V meters.

My 120 bag has a Rolleiflex 3.5, Super Ikonta, Weston Master VI, and more filters and assorted gear. A Luna Pro meter with spot attachment as well.

My 35mm bag at this point has a Rollei SL35 (made in Germany), and Rollei SL35E body, with Sonnar, Planar, Distagon, and Takumar lenses in 21, 28, 35, 50, 135, and 200 mm fixed lengths, and the usual “etc.” items. Another Luna Pro.

And my DSLR bag has my D3200, 18-70 Nikon, 55-200 Nikon Kit lens, and Tamron 2x converter. And yes, still another Luna Pro. My wife’s DSLR bag has Her D3200, Nikon 35mm 1.8, Nikon 50 mm macro, and Sigma 10 - 20 and 18-300 zooms. She also has a flash.

All bags have flash units appropriate to the camera, polarizers, cable releases/remote triggers, and notebook and pen.

We each have a bagged tripod in our vehicles, and I have a lighting bag with stands, flash triggers, reflectors, umbrellas, and spare flash.

But dang, Bob, I only haul one outfit at a time! I pick a format based on my goals and destination, and leave the rest at home.

Andy

If I'm going out to do landscape photography I take 1-4x5 w/ 5 lenses and 20 sheets of film, 1-Hasselblad 500c w/ 4 lenses and 6 rolls of 120 film (Ilford FP4+), 1-Digital FX w/ 2 lenses, 1-35mm w/2 lenses and 4 rolls of film (Ilford Delta 400).

Additionally, light meter, strobe, filters, cable releases, notebook, pen/pencil, tripod. In a couple of months, I'll add an additional 4x5. I'm currently designing and will have some custom parts machined for that camera. Obviously, I can't fit all of that in a camera bag. So, there are a couple of camera bags and cases involved.
--Bob