Here is an easy way to build AP and EXP while sleeping!!!! Start by equipping one character as a White Mage and choose 2 other characters that do strong physical attacks. Go to an area where the enemys don't do more damage to you in one hit then the white mage heals them for with pray. Also make sure the enemies don't cast and spell that will give you a negative status (poison, darkness, ect) or if they do that you have equipped an accessory that will protect you from that status. Once you have done this take a toothpick and put it so that it holds done the X button and another toothpick to hold down the analog stick and walk away. (Make sure you are running into a wall or some places that will make your characters run in place) If done correctly your characters will automatically enter a fight defeat the enemies and return to the map screen. Leave it like this overnight and you will awake to find your characters have gone up in levels and learned new skills in the dressphere that they have equipped. To make the process go quicker equip one character with the Lure Bracelet (cause more random encounters) and the Lady Luck dressphere and learn the skill Double Experience.