This may seem like a trivial idea, but it's working great for us.
I got tired of seeing scrunched up little headings jammed up into the upper right corner of students' papers. So, I tried the method that we used to use back when I was in elementary school. Please see the sample above.
Their papers are so much easier to read now. My fellow team members thought so too. Now, students are expected to head their papers in the same way in all of their classes.