I really don't have a problem with my inventory space, i'm lvling 5 jobs, 1 DoW 1 DoM 1 DoL and 2 DoH, allways carry with me the DoM, DoW and DoL sets with me thats like 30 inventory space that leave me with 70 space to use on anything that i can get. BTW the 2 crafting set i leave it in town because thats usually where i grind crafting.

Even so been able to call a retainer on the field would be nice just not on every crystal, just make it like the merchant guy, on some crystals