If you have a class set of Chromebooks or some other device and students are trained to check them out and put them back, and you have Google Classroom at your school, I highly recommend using Classroom for sub plans. It's gotten to the point, where all I have to write in my sub plan is: 1. Tell kids to get out their Chromebooks, 2. Tell them to find their assignment on Google Classroom, 3. Check Chromebooks back in 5 minutes before the end of the period and check that they are all back before releasing them. I just give kids a list of tasks to do for that day, including our starters, online quizzes, vocabulary sets, and I can even give them video lectures from youtube, or simulation labs and they just complete their assignments on Google Docs. I create all of my handouts in Google Docs already, so it's usually just a matter of uploading it and giving every student a digital copy of it. You can set the deadline for the very end of the class period and tell kids that you will not accept late work or you will only accept it for reduced credit, and Classroom will tell you who turned it in late or not. I technically could even write my sub plan from home the morning of, directly on Google Classroom, and not have to fiddle with sending it to the secretary to get it printed or what not and having her make copies of handouts. Kids just know now that when they have a sub, they have to open Google Classroom. Prior to this, my sub plans were almost always just "show this movie" because it was easy to prep, and I didn't have to worry about anything like explaining particular parts of activities to the sub or worrying if the sub knows the content or how to work the technology, but my sub plans now are just like what I expect them to do any other day, and the kids basically run it themselves. (Though that has resulted in kids telling me that the subs end up with nothing to do so they just sit in my chair and use their phones all day...) Google Classroom + Sub Days are awesome.