I found these bins at WalMart (before they started making them with non-removeable cardboard insets in the bottom). I dyed them using Walnut Ink Crystals (in a big TubTrug filled with warm water and crystals). They fit perfectly on the bookcases in my studio. The two bins shown are for envelopes and scraps for cards.
The organization and decor in this studio is highlighted in Scrapbook.com's free Get Organized Class.
The studio was also featured in the August 2014 issue of Where Women Create magazine.