While I have a report that I run on past due tasks for everyone on my team and check-in on them with it, I wish there was a way for people to have past due tasks get more into their faces:
- Home: Highlight past due tasks in a section.
- My Tasks: Highlight past due tasks more strongly than just by making the date red.
- Inbox: Periodically put things in inbox after X many days due
- Pop-up after X period of days where it prompts people to complete, change date, or reassign the task.