Love the idea of creating a super hero inspired room. Here's a tutorial and printables for recreate these super hero bins via Sugar Tot Designs sugartotdesigns. You could also put monster pics on the totes for a monster room
Each lego set is in a shoe box with a label either cut from the original box or printed out from the internet Lost & found bits are in a box of their own. All instruction books are kept in plastic sheet protectors and sorted in binders!