Potions
In the town after the castle levels, walk behind all the houses instead of on the street. You will find potions a scrolls behind them.
Gravestones
In the town behind the houses in the second area is a graveyard. Walk up to each stone and press R1. They will be marked with things such as "Disco" and "Beloved Game Developers".
Easy Exp
To get some easy exp in the castle fight, all the elephants you find they give you a lot of expierience.
Daria's Doom
If you have the spell Silence Daria this will be a piece of cake. When you start the fight, morph into a more powerful form then cast the spell "Silence" so she can't use Mind drain or Minor healing. If you don't beat her right off the bat re-cast silence when it wears off.