I have been using the quiz module extensively for posting multiple choice/true false assignments. This is working great except for when I have students who, for whatever reason, don't complete the quiz by the close date. As part of my courses I allow late turn-in for the first few days after an assignment is due with a penalty. Currently there doesn't seem to be a convenient way to do this with the quiz module--I have to manually go in and change the close date so that the student(s) who did not complete the quiz can get in.
Maybe if there were a due date and then an optionally different close date on the setup page for a quiz? The due date could work exactly like the close date now (show this date on the calendar, events, etc.) but the quiz would not actually become unavailable until the close date. And, since I'm dreaming pie-in-the-sky here, maybe an option to apply daily penalties past the due date (like 10% per day past the due date).
Forum discussion: "Plugins to penalize students' grade for late submission"