I have been here an hour and a half. So far, I have proofread one (1) page. And now I need to go to the bathroom. Really, I'll be more productive in the next hour and a half. Let's see if I can get through at least 2 lessons in the next hour and a half. I don't want to be too productive, though, since proofreading this chapter and the next chapter could well be the only work I have until a week from now.