I use a list to cross off what needs to be done as we clean up for the end of the year. I found it is easier to get students' help by asking them to come to you in pairs and giving them a job, while the rest of the class works on an activity at their seat. I start this about two weeks before school is out, starting with what they don't need anymore first. Once those students are done, they go back to their seats and I call on a different pair of students, and so on. This is editable so you can add or take out whatever you'd like!