When I started setting up my classroom this year, I knew I would need a lot of containers to hold all the odds & ends my students require. I bought a number of these stacking containers in various sizes & for the first time I'm not finding paperclips, markers, and glue sticks running amok all over my floor. By using colored index cards to label the contents, my kids do not have to constantly ask where things are and, more importantly, things make it back where they belong when they are done!