My floss organization system - part 2

Today as I was reviewing last night's post to ensure it made sense (I was up pretty late working on it), I realized I didn't include an overview photo, so here it is:

 

It is currently being housed on a shelf next to the entertainment center because my craft cave is going through a massive reorganization.  Ultimately, once I decide which shelf they will be on in the craft cave, I'm thinking about building a mini shelving system out of foam board so that I can pull out a box towards the bottom of the stack without have to relocate the ones above it as I have to do now.