The other I will keep. Revision I may ask you to revise your paper. This will not affect the grade. I hate those flimsy little plastic things. I usually throw them away.
Paper covers and other fancy forms of presentation are mere annoyances.
Save your money. Just staple or paper clip the pages together. And don't come to class the day that paper is to be turned in expecting me to have a stapler. Discography Precision is everything when it comes to this reference material. You are a visiting student in a college of journalism and communications.