I found some great storage boxes for my centers! They are scrapbook storage boxes. They sale them at Michaels. They are 9.99 regular price. I got mine for 3.99. I was also lucky because I had a 20% coupon on all purchases. I also bought cardstock for $2.00 on sale. I use it for my centers. I have seen the storage boxes on sale before. So, if you like these just watch Michaels for their sale. What do you use to store your centers?