There are certain things that lend themselves well to reuse (or recycling).  Glass jars, for instance, have infinite uses.  Other things are not so obvious.  For instance, those cardboard displays that students use for science fair projects.  You know what I mean?  Those tri-fold boards?  After the science fair is over, what do we do with them?  That’s a lot of cardboard to go in the trash!  I know I read somewhere once about using them to store something – posters, maybe?  Do you have any clever reuses for these?