I'm pretty new to the fountain pen thing, but have acquired a bunch of pens. For the pens themselves, I have them in a couple of travel cases, and a big folio for the ones I don't have inked up (though I have more inked than not). However, a bunch of my pens came with cases (like the pilot metropolitans, of which I now have 3), and some had cartridges that I replaced with converters, or squeeze converters I replaced with better converters. And instruction manuals and whatnot. Does anyone have a cool/convenient way of storing all these items? Right now my instinct is to put them all in a box, but I have so many boxes of things, and one more box of things would just get lost. Something more permanent would be great.