-Dynamis (farm currency)
-Voidwatch (run the NMs that drop heavy metal sacks and sell the heavy metal)
-Slavage (farm alexandrite)
-Farm Abyssea-Konschtat (Get ~100 amber light, hunt for Dark Rings and other NPCable items. Dark rings NPC for 33-34k each, and you might find one that's useful (-5% magic and physical damage if you're really lucky). This one's spotty, sometimes you can get a lot, sometimes you don't get much, but it's also the only one of these four things that actually produces gil, rather than just relocates it.