I made these my 2nd year of teaching and am still using them 4 years later! I type in the names at the beginning of every year, edit when needed, and print out a new sheet for each unit we complete. At the end of the grading period, I will staple all of the sheets together and keep in either a filing cabinet or a binder for the year - just in case. I definitely need to have a paper copy to write grades on, and if your school doesn't issue laptops to you, this makes grading on the go so much easi