I've come up with a simple way to deal with absences. When a student is absent they go to the "Absent Bin." In high school, I organize my bin by periods, in Elementary you could do it alphabetically. They go to the period they are in and get there absent sheet. I've attached a picture. Next, I have a bin of extra papers set up. I write down the assignments they missed and make a note if they need to stay after school. I also write the date down that everything needs to be completed. Also, the extras bin provides a place for students to find papers that the need another copy of.