The best ideas are the simple ones. This shelving system really caught my eye making me wish I could do something similar. And then I realized, oh wait, I can!
The IKEA At Home blog reveals how this storage was created. They used a series of Prant storage boxes in different sizes and connected them together using binder clips. The binder clips gives the structure stability (although how much remains to be seen). The painted insides are a great touch. Painted or not, this would look great displaying books and toys in a nursery or playroom. For more photos, check out IKEA At Home.
(Images: IKEA At Home)