I would prefer if we had the ability to collapse the columns in the vault, such as primary weapons, secondary weapons, etc., for a faster way to find a specific gun or misc. item. It would also be a decent idea to put in sub-columns in the vault under armor, so that it is easier to identify the armor type, though the ability to transfer Warlock armor to a Titan or Hunter should still stay. I would also like the ability to transfer items from the postmaster to the vault or characters as well, but that isn't really all to important, in the long run.