Not something to auto-accept/turn-in but to track the available dailies and which ones have been done. for example: Golden Lotus - list the available dailies for that group/hub/whatever and once you accept and then complete it checks it off. This would be of great help as I can never seem to remember to do them all now that they are scattered everywhere and there are a ton of them.
You might want to look at the addons Wholly and Grail. They record what quests you have done, but also understand quest relationships so will remove quests that cannot be done from the list of available quests. For example, when you have selected a Klaxxi daily, the other Klaxxi dailies that are not available that day will be removed from the list. Or when you have selected the third Anglers quest for the day the others will be removed, etc. This should help for one toon, but does not monitor across toons.