That's good. About 10 years ago our district began a campaign to lighten kids backpacks which sometimes weighed more than the kid. Initially they talked to publishers about lighter books or making books in to multiple parts and having teachers try to find ways to kids to keep textbooks at home which many were able to do with little difficulty as they said they weren't really needed during the school day that much. The inclusion of notebooks and IPAs (with keypads) over the past five years has made it even better. Many teachers have gone 100% iPad with students not needing to carry anything else.