I need help in advancing my DoL classes.

[Katchii]

You manage your inventory by selling stuff you don't need right now. When you do need it go out and harvest more.

You really can't skill up all classes at the same time, your inventory would be completely screwed. You talk about materials, but what about all the different gear sets needed? Gear changes every 5-10 levels so assuming every piece of gear hgets replaced every 10 levels starting at level 10....that's 55 inventory slots just for gear.

Sell stuff you don't need right or put it into the FC chest, and then take what you need out later. Stuff isn't THAT expensive that you need to hoard everything, if you have no idea when you'll actually use that material or item, sell it and buy it back or harvest more when you need it.

[Sadana]

You really can't skill up all classes at the same time, your inventory would be completely screwed. You talk about materials, but what about all the different gear sets needed? Gear changes every 5-10 levels so assuming every piece of gear hgets replaced every 10 levels starting at level 10....that's 55 inventory slots just for gear.

O.o This is exactly what I'm doing currently (all DoH to 43/44 as of yesterday). My DoL classes are spread out a bit more though (50 MIN, 47 BTN, 37 FSH). I regear all my DoH classes at once so I only need one gear set (besides tools of course) to carry around. Hitting 50 will be epic!

That being said, I make good use of the FC house materials npc for basic mats and gather what I need otherwise. I organize my retainers according to crafting type (yes my CUL/ALC retainer's inventory overflows) and sell off what I no longer need. I try to get the GC turn in list done every day; at least the starred items.

Good luck!