One of my students today pointed out that we have used hardly any paper all year. In fact, the only paper I have handed in their class was the required course outline and two tests for a total of 10 sheets of double-sided paper. I just mentioned to someone that I could be completely paperless in my teaching if I could find a way for the students to securely do tests online and include essay style responses. Maybe a classroom set of tablets would be the answer to that but they are pretty expensive.