Best advise to all that want to make Gil on this game "level your gather classes first" this will cut out the middle men that supply your mats and allow you to farm mats you need for high level crafts your self.
Making a lot of Gil on this game requires creative thinking study of markets and sell of items at the CORRECT times! You should generally jump between multiple markets for items selling on one if another gets flooded and selling your items at the right time when supply is down the price is high and the demand is good (this happens more than you may think)
