A good idea for a small bathroom, under hanging shelves for things like cotton balls, cotton swabs, etc. Also great in the kitchen, for a spice rack over the stove. Just hang jars from bottom of the cabinet.
DIY Cardboard furniture That doesn't look like it's made from cardboard! We've had some great posts on cardboard furniture you can buy that doesn't LOOK like cardboard, but most DIY options resemble the brown recyclable stuff.