There are a lot of ways of handling late homework submissions, of which I've only tried a few. The general policy I've settled on is something like the following. Homework must be submitted at the beginning of class on the day it's due. Late homework is not accepted. This is pretty harsh, I think. But with this policy in place, I make unofficial exceptions on a case-by-case basis (it's easier to start with an overly harsh policy and make exceptions in the students' favour than the other way around), for example, if a student happens to be late to class on a day that homework is due. I want students to be motivated to hand in their work on time. Highly motivated. That's why I make the official policy so strict. But I feel bad about actually adhering to such draconian measures (they should get zero for missing the bus?), which is why I make exceptions. But overall, I'm dissatisfied with the ad hoc nature of this approach. How can I motivate students to submit homework by the deadline without being "overly harsh"?