Centers Storage

I started using the plastic shoe box size bins with lids for centers storage this year. I found that I had a lot more space in each one than needed and the worksheets/instructions rolled. I found shallow bins with clips from Target (Room Essentials) that are working perfectly. I can stack more that with the shoe box size ones and they fit papers well. I have been buying myself 3-4 a week to build up my supply. No pictures were available on the website, but I found a blogger who used them as well, she included a picture on a post.
Anyone have suggestions for a great way to store and use your centers?
http://michellesjournalcorner.blogspot.com/2010/08/muffin-tin-meal-supplies-storage-and.html