All file names should begin with the date and (preferably) your name, in the form
YYYYMMDDname (fall 2014).This is tremendously helpful in keeping track of all the parts of the project.
Similarly, all labels should have the date (see below). That will prevent duplicate labels.
You may include the whole header in your file instead, if you wish, but it's less convenient when I prepare the combined notes.
This won't provide automatic chapter numbering but we can manage without that.
To continue an existing section from the previous day, use the \section*{TITLE} command.
I've arranged the header so sections get letters (as in the outline) instead of numbers.