I have a gun safe but no guns -- just my guitar and my camera gear. I custom built a shelving unit to fit inside to accomodate the guitar in a hard shell case, a pelican case and medium and small shelves for a loaded shoulder bag, backpack, tripod, and all my other camera related items. Other than my darkroom and post production equipment, all my camera gear lives in the safe. My house is entry alarmed, so I don't generally lock the safe on a daily basis, but when we're away from home it's nice to know it's locked and secure.
My bigger storage and organizational challenge is with post production gear -- mat boards, mat cutters, frames, glass, dry mount press, print storage, and so on.
I consider myself lucky as my wife is my biggest fan and actually encourages me to go ahead and buy something I've had my eye on --I'm the one who has to supply all the hold-back willpower.
Regards,
Dave