You can colour code it
You can write information
No longer have scraps of paper lying around
Mindmaps, ideas anything that is floating around in your head, gets put in here to free up your mind to get on with things
Design ideas, templates etc
I have found that I no longer have scraps of paper lying around, I don't throw out or loose information, and once I get it out of my mind I can focus on other things, and not worry about forgetting it
It really has given me space to create, explore, grow and remember.