Periodic onslaught or constant grading?

In planning to teach three classes at the same time last semester I was careful to space exam dates and deadlines in order to avoid having more than a few things to grade at any given time.  As the semester went on, however, I realized that by spreading things evenly over the course of the semester there was no point at which I didn’t have grading hanging around my neck like an albatross.  Still, I was able to grade most assignments within a week so from the standpoint of my students this approach was probably a success.

Preparing for this semester two of my classes remained the same so I left their deadlines and exam dates alone.  For my third class, however, I didn’t think to coordinate with my other courses.  As a result, I inadvertently had essays due in two classes on the same day.  It turns out that I appear to deal with constant grading much better than a periodic onslaught.  While neither assignment on its own was particularly burdensome their combined weight (and my ever-present disorder) prolonged the amount of time that it took me to grade them by a number of days.  I doubt that my students noticed but I can only imagine the delay that a buildup of longer papers or exams might cause.