QuestsChanged
Developer tool for tracking quests as you complete them... including the hidden behind the scenes tracking quests for objects/mobs. It also tracks details about the vignettes that you've seen in the current session.
I use it to work on my HandyNotes plugins, because the tracking quests are hard to work out otherwise.
This provides a DataBroker plugin to display the data.
If you don't have a broker viewer installed, type /questschanged
to show the log.
You can also type /questschanged icon
to toggle a minimap icon.
I write many of the guides for WoWPro and I must say this is WONDERFUL. I had my macro bar full on beta of /run print(IsQuestFlaggedCompleted(xxxxx)) for all the treasures in a zone so I could identify which one was where. I just found a new treasure yesterday and I was not relishing duplicating those macros on live. (I can't just copy from beta as I had to delete some to make room for others when I was done with the zone.) This will go with ID Tip as my must have addons for guide writing.