Pay for your inventory.

[Lillia]

That said it's possible the problem will be alleviated somewhat by the fact that you can now desynth and trade in basically all the 2.xx gear and that they expanded what you can store in the armory chests, I know for me that frees up basically 3/4th of one of my retainers right away.

It also helps that we can farm lower gears that we may of saved for new classes/jobs as we get higher with our mains with less than a full party and no ilvl limit.

Meaning all that can be tossed out if we're willing to deal with slight RNG but fast farmings.