What drives me nuts is the way I have all my bike parts "organized." It's a nightmare! I'm blessed with a nice, big basement area that's pretty much dedicated to bikes, parts, etc., but since I've had more than one biking "life" (old road bike, long run of mountain biking, now back to old road bike), the mix is a headache. If I need a simple cable ferrule end, I have to think first, "okay, are those in with my mtb cable stuff or is it in the old road cable stuff? And further, is it in with that big tangle of cables and supplies, or is it in with the brake supplies, or the derailleur supplies, or.......ahhhhh!" I've got most of the stuff, enough to build up who knows how many bikes, all apparently stacked neatly to the untrained eye, in mostly small Rubbermaid-type stacking boxes, and most of the boxes even have magic marker labeling on them. But your guess is as good as mine where you might find a ferrule end, even though there's probably a hundred of them in there somewhere!!!