Instead of each character having their own personal clean up points, make it so each character on that account has access to turning in, and getting rewards from the same account-based pool of clean up points.
Before ya say, "just give all the items to the main character"; id like to add that, it is an annoyance...
Before ya say, "just give all the items to the main character"; id like to add that, it is an annoyance...