If you're like me, and can't remember what quests you did in the past, you can use this to look up the different zones per specific character, and see what quests you are missing. Use that in conjunction with wowhead, and et voilá. Remember to say a prayer to our lord and savior, RNGesus. "Our father, who art in code Random be thine rolls. Thy drop rates scarce, thy wrath be fierce, for those who reroll fotm. Give us this day our rares and uniques and forgive those who will be abusing GM's, as we forgive the people who made that a thing. And lead us not into Wowhead despair, but deliver us from bad quests. For thine are the game mechanics, and the rules, and the broken keyboards, forever and ever. Amen."