I recently maxxed every single Exotic (Destiny)

by Korny , Dalton, Ga. US. Earth, Sol System, Wednesday, August 19, 2015, 19:26 (3383 days ago) @ Chappy

If I'm right and the blueprints don't store weapon progression, you'll need to keep all leveled exotics in your vault or character inventory (63 items). You'll only use the blueprint screen to buy new versions of existing exotics, but once you start leveling those you'll need to hang onto them in your inventory (another 26 exotics for a total of 89).

It's a good thing the vault space was doubled, I'll need half just to store my leveled exotics. Honestly the exotic changes have raised far more questions than answers for me.

You know, you don't HAVE to pull out every single Blueprint at once...

Even if you were to unload en entire character's weapons into the vault, that's only 27 slots.
Do things piecemeal and only what you plan to use.