You're probably right about solvable quests on NPCs. I'd have to more thoroughly check out how everything works. Next, thanks for the item expiration delay tip. I'm using pause rigorously atm, but if the drops continue to increase, I'll likely need to use that. Last, I didn't know there were quests to recharge the teleport stone. A part of me feels like Din's Curse had the quests too, but that was so long ago. I can't be sure. Thanks for the response MindDefect.
One more random suggestion: Show the durability of an item on the tooltip of the durability warning on the side of the screen.