I teach. I use these binders for all those things that can't be stored electronically. They are tough well-made and have lasted and lasted. No Staples in my area so I'll order on-line over [@] locally any day.
Each year I look for a quality binder to use for my elementary Physical Education plan book. I think I've finally found a high-quality well-constructed durable binder that can withstand being tossed around the gym floor and taken outside to the playing field.