Quest Log
 

I think there should be Quest Logs. It'd be the entire list of quests that you can do. To see your progress in a particular quest, you click on the quest name, and it'll show you all the steps you've done, and the next step would give you a hint or two so you can find out what you need to do next. Different colors on the quest names would tell whether you have a quest you haven't done yet, a quest you're currently working on, and a completed quest.

All quests are entertwined. They aren't linear. There are mny different ways to get to each item. I don't think your idea would be of any use, or that it would even work