Ok here is how it works what you do is that you go to the goblin fort as much times as you want. then you just fight them they drop stuff that can help you like herbs and nooby stuff like cotton hoods for example. ok here is where the money part comes in! what you is that you take what ever you got just sell it!(if i never did this i would have beat the game 2 times right about now lol!) but if you need that stuff keep it if you need it.

NOTE:THIS GOT ME 5,000 GP IN 45 MIN. TO AN HOUR!
NOTE:I CURRENTLY HAVE 10,000 GP RITE NOW(U DONT WANNA SEEE MY BANK!)