I'm not good with cascading notes. I always forget what's inside the parent items and end up making new redundant parents. I use numerous tags instead. In my online university, each term is about 8-9 weeks long. So I combine the code of the class and the week I'm in. All my assignments, research results, textbooks of class BUS12345 in the first week, go to tag "BUS12345 Week 1" and so forth. Therefore, I don't mistakenly use material week 1 when I'm in week 6, for example. Before the exam, I save my search for every week under BUS12345 and bingo, I got my self the entire materials for the course.