I use these page protectors at school to organize worksheets tests and other documents for easy organization within a binder (which is more portable than filing the work in a cabinet.) Although designed for viewing individual pages they are flexible enough to hold workpackets of 10 pages.
I used this to organize pages of an instruction manual that were falling out of their bound book. The holes in these page protectors do not rip and then slip out of a binder. They are easy to remove from the binder for copying purposes. The pages do not need to be removed from the page protectors as they are clear and can be placed right on a copy machine.