First of all I like the quests that were added in adds some more story info. SP in this game is so slow but gil flows like water and easy to get. I would suggest to every thing in this game that rewards gil to be cut in 1/2 and the other 1/2 converted to SP (not exp that is easy to get and is going away). If a level quest is giving marks match SP to the mark reward.
story missions/class quests/job quests/chests/daily guild tasks/level quests/battle-warden.