Redo the "Quest" scheme.
Make it where "!" mean there is a quest to do.
"?" means pending you to do the quest.
"!" different color to mean quest complete/collect reward.
Option to press "Q" and a Quest menu pops up. Basically saying how many quests you have, who game them to you and what you have to do to complete the quest.
Name the NPC(s).
It will help when we have to return a completed quest.
"I got the quest from Cpt. Long-Steel"
*does quest*
"Back to Cpt. Long-Steel by Pvt. Fetcher"