This is a potentially obsessive thing that I do: once I get all of my assignment dates put into my planner, I create a semester assignment spreadsheet in Excel. This is different from what is on the syllabus because I am combining all of the graded assignments from all of my classes into one consolidated list. I include the due date, name of assignment, and how many points it is worth. They are listed in the order that they are due… it also allows me to keep track of my grades and eliminates panic attacks.