Since many of us are stocking up on card stock during Sale-a-Bration I thought I'd share how I store mine. I have a rolling cart with hanging file folders; one file folder for each color and I organize it by color family. My cart is in storage until we move so I have my hanging files in card board file boxes at the moment
I punched out a tab of card stock and glued it to the top of the folder so I can see which color card stock is in the folder without looking inside. I store my unopened packages in a rubbermaid tote so the sunlight doesn't get at it and put a paperclip on the file folder so I know which colors I have in storage.
As you can see in the photo I have 3 extra packs of Real Red and 1 Rich Razzleberry.
I've stored my cs this way for a few years now and it's been working great. It's very user friendly and it's easy to keep track of inventory. Now...if only stamp storage was this easy.