I have a briefcase collection.
One with my amateur astronomy gear and telescope accesories.
One with my navigational equipment and publications.
One to hold my Humana/Medicare documentation and correspondence. This one is already close to filled up, and I need to go through it and organize it before it can't be shut.
An empty one I only pack with the essentials I need for a specific mission, like a job interview or a visit to my accountant.
I also have a case filled with my shooting accesories, such as ammo, cleaning kit, safety glasses, ear protection, paper targets, maintenance manuals, proof of ownership, gunsmithing tools, etc.
A man needs a place for his stuff.