For those of you that lend out books- how do you make sure you'll actually get them back? I've always lent books out with a nonchalant attitude of, hopefully they'll get brought back but if not, at least my students are reading. I find that, 95% of the time, students are responsible about bringing books back. That other 5% is bothering me, however, as recently some of my more popular (and expensive) graphic novels have gone missing. I'm also missing my first books of some popular series. I've taken to saying that the graphic novels can't be borrowed, but they still end up getting taken and not returned. Students use a checkout system in my classroom but the same ones who are not responsible about returning books are also not responsible about correctly using the system. How can this be solved?