Naiant AKG and MBHO actives are a breeze to store. Simply disconnect the actives+capsule from the cable coil and throw the expensive components into a padded drybox. Unfortunately, with just about every other active solution, including Schoeps, you don't get that luxury.
Unless you're bringing optional patterns, I would never recommend transporting capsules to/from a show in vials. Shows are dark, vials are small, and the risk of accident when screwing and unscrewing capsules on-location is far too great. And as AJ mentions, unscrewing them once home buys you nothing and risks stripping the threads. I've seen very old colettes where the threads have become brittle or chipped and changing capsules is actually dangerous, so it's best avoid wear and tear over time.
Nbox cables are really easy to store due to their small cable size. I recommend you grab a small sized pelican and store the caps still attached to the active cables together and never remove the caps unless you have a reason. Also keep in mind that at some point, they're going to get used and it's possible they'll get a few battle scars.
Don't ever store them long-term in screens. Day of show in a gear bag is fine, but long-term they do shed.
edit to address your original question: the SCH544 are long tubes meant for storing bodies, without the capsule. I suppose you could store the capsules in them with lots of foam, or maybe find a creative way to store two capsules in one tube, but they're really not meant for it. Only advanage, imo, for transport would be the larger size of the tube would be easier to locate and keep track of.