Step 5: Tie it off and trim
Once you tighten your threads, go ahead and tie it off. Again, just like the other know, functionality beats out aesthetics today. Make your knot big, we don't want this thing to come undone.
After the know has been tied, take your blade of choice and trim the extra over off. I recommend doing the back side first, using the paper's edge as a reference. Then flip the whole thing over so the front is face down and the notebook it closed, and trim it again using the edge of the paper as a guide.