ED105 has allowed me to change my grading system. I would let students hand assignments in up until the last day of class, which only caused more stress for me and didn't teach them anything. They would only leave my classroom and think this was accepted behavior. I now give them one week then the grade becomes a zero. On the first day of class, I give them a list of all their assignments, so if they miss class they know the assignmnet they missed.