4 in total, but only one gets used
A Roots bag, holds the Mamiya RB67, a 90, 150, and 250 lens. Plus all the usual other fun stuff like a shutter release, film, maps, pencils. Weighs about a Volkswagon. Ok ok about 20kg.
A courier bag from Old Navy. Cut some foam to fit my Nikon and a few other odds and ends. No longer used.
A locking silver attache style case bought at a bigbox hardware store. Held my Nikon and a Yashica C plus extras when I flew to New Orleans a few years ago. No longer used.
A small Tamrac bag that the wife has "liberated" from me and filled with her gym gear. At least it's being used.
The Roots bag was deal, but the straps don't adjust enough. Lots of room inside but no proper attachment for the tripod.