Create quests with objectives and display each as complete or failed as the quest goes on. Quest details are stored in a .txt file within your project.
Sort quests into categories that can be expanded/hidden by the player as desired.
Use script calls to check results of quests and objectives to potentially save on switches/variables.
Player can track a quest, making it appear in the quest log when no other quest is selected to quickly reference it during game.
Quest update notification can be done manually or automatically if using Galv’s Timed Message Popups (included in demo as example).
It'd be cool if the quest logs looked different to each other. Personally I'm not a fan of the base layout that people make them look like. But hey, at least it's an alternative!