If your family is like many others, you eat a lot of breakfast cereal. And you may be annoyed when that last bowlful in the box is full of sawdust-like crumbs! This situation is easily avoided by pouring the last bowlful of cereal into a colander or strainer and shaking out the sawdust, leaving the just the whole pieces of cereal behind.
No more complaints about the bottom of the box of cereal!