I really like how google drive can be so easily organized. I have each course I teach organized by unit and within each unit I have 3 subfolders - homework assignments, homework answer keys, and notes. The notes folder I have either a pdf or video of each lesson in the unit. This organization allows me to easily find everything I need to post on the google classroom daily. I had the units color coded by courses but didn't know I could add the emojis so that is a nice touch to allow things to stand out.
