Easy Money
Use this little trick to make some easy money and have unlimited access to the best healing item in the game, elixir! To do this, you need to have access to the Thief class (which you can unlock in the first sub-quest) and access to the level 25 nemesis "Mammon" in Norende. Now, when going into battle with Mammon, your goal is not to fight her but to steal her item. Mammon will either have an elixir or an ether. Go in, use brave x4 and steal with your theif, and set all of your other characters to run. Assuming your theif has the highest agility in your party (a safe bet), he/she will go first. Once you find a Mammon that carries an elixir, be sure to hit "protect" on it from the Norende screen. She will always drop the elixir, and as long as you don't defeat her and just keep stealing and running, you can have an unlimited supply of elixirs. They sell for 25,000 pg each, or you can just save them for your own use, as they heal 9999 hp and 999 mp. This gets even better when you get your theif to level 11, as the Rob Blind ability gives you a chance to steal two items, bringing your haul up to 50,000 pg per hit! Happy hunting!