I am not sure if anybody mentioned this before, If someone did before me, please link their posts in the comments below.
I would like to suggest letting players adding multiple quests on their lists, so they don't have to running back and forth between questing area and towns to just turn in one quest at a time. Also, a lot of side quests are close together, but every time you finish one, you need to run to a drop box to turn it in, then ran back to get another one, it is just too annoying and counter productive.