I staple this inside of a manilla file folder and each student has their own folder. (I let them decorate it however they want.) I use a colored marker or crayon to fill in the top info, coordinated to their book level color. When it fills up, I just staple a new sheet on top. Easy to keep a running record of their AR tests.
They are responsible for filling out their log when they get a new book and when they take a test. They have to record their score and inital, then I have a basket on my desk where they put their folder so I can initial when I have a free moment, and then it is taken home so parents can see their score and initial.