Easy CP and Gil
Note: This trick requires a turbo controller with auto-fire capability and a team that is able to win every random encounter in Academia -400 AF- without switching Paradigms or using items. Go to Academia -400 AF-, and reach the area southeast of the safe zone (where Chocolina is located). Find the escalator, which should be blue (going up). If it is not, find its switch to make it blue so you do not end up at the bottom of the escalator. Face the escalator, and set A to auto-fire. You will swing your sword wildly at the air when an encounter is imminent. Within a few hours, you should have gained a lot of CP and Gil. Note: This location was selected solely because of its proximity to the safe zone, but anywhere outside the safe zone will work as long as your wild sword swinging does not move you into the safe zone. Academia -400 AF- was selected because it is the only zone where you can have random encounters while standing still.