Final Fantasy Gil

I need to know how Gil in Final Fantasy XIII. The only way I got GIL is either the sale of products or find GIL but is there any way that is faster to get GIL. Please reply if you know what you mean. Thank you

It depends how far you are in the game really. If you're in the first ten hours, then you can not really grinding * for items to sell. Treasure balls and selling items is the only way, I'm afraid. No fall of Gil enemies.

* The grind is where you kill enemies and walk back and chicken, they respawn.