We all have inventory issues, we all know that. But instead of focusing on more inventory space, lets try focusing on what is taking up so much space.
With the introduction of abyssea, the desire to lvl more jobs is more obvious then ever. Which mean that equipment is quickly on the rise. One thing that never relay made sense to me, even back when i first started, was have special WS sets to macro over to before WS'ing, then macroing back to fighting/tp set (or whatever else you happen to be using at the time) It just never made sense to change your armor mid fight, multiple times.
I had heard that in ff14 they tried to implement a system where you would not receive the effects of new equip for 30 or so seconds after you put them on, in order to avoid this gear swapping everyones become so accustomed to.
So why not implement that here of your able to? Help due away with the multi sets during combat. If nothing else, not needing so many equip sets will certainly free up some inventory room!