I finally came up with a system for my card stock scraps. I bought twelve 3-drawer containers from Wal-Mart. In each drawer, I put a divider I made from two sheets of Wal-Mart white card stock scored and glued together.
Lastly and most importantly, my color sorted scraps! I would be nothing if it weren't for my scraps! Seriously. I use these for EVERYTHING, and so do my boys! There is no scrap too big or too small for cards, tags, flowers, punching circles or covering a jar... truly, the possibilities for scraps are endless!!!