1. Do not put all your major papers in the same three weeks. If you get slippage in any of your classes, because of the flu or a hurricane or students not understanding, you may end up with several at the same time.
2. Do not wait till the end of the semester for all long papers to be due. At least schedule them one month before the final so you will have time to grade them.
3. If at all possible, move the major paper to the beginning of the course. Students who are not serious will drop and you will have fewer papers to grade throughout the semester.