Alright, so I found the rupee good 11 in the big square room. Now, for that last jar. I've got 31 of them.
What would be great would be a comprehensive list of all jar locations. I'm one jar away from 100% completion and, what I assume, is a more insteresting ending. I've gone through every level and dungeon 3 times, talked to everyone many times over. It's needle in a haystack without a list. Any takers?