Smart. Easy to forget. Ultimately essential.
The notebook sure seems like an obvious thing. We take it for granted, leave it behind, grab any scrap of paper handy, or write on the nearest clean napkin.
As I've become more experienced in the field, I've come to realize how important it is to keep my notebook in my bag at all times.
Some designers are legendary for their notebooks, such as in this story from Michael Beirut, on Design Observer.
"On August 12, 1982, I took a 10 x 7 1/8 inch National Blank Book Company composition book from the supply closet of my then employer, Vignelli Associates. From that moment, I have never been without one. I always have one at my desk. I take one with me to every meeting. I am now in the middle of Notebook #85. It's in front of me right now. Together, these well-worn books create a history of my working life that spans three decades.
Now that's a feat of mindfulness to which one can aspire.
A Taskmaster and Memory Keeper
My notebook, which is a Pentalic Illustrators Sketchbook, 8-Inch by 5-Inch, Espresso is one of the most valuable things I carry daily.
Whether I'm in a design session, meeting, or just sketching, it adds tremendously to my sense of security. Every action, idea, exchange, and offhand suggestion goes into the notebook. Nothing is forgotten. Doing it this way has another benefit. It's a lot like the way thumbnail sketching on paper helps you work out solutions to design problems before you ever touch a computer. Writing down everything as it happens gets your mental engine working on solutions in the background.
Make sure your notebook is large enough to show quick sketches and diagrams to other people. I used to carry around a hip-pocket-sized Molskine sketchbook, which served me well at the time.
However, to share a drawing during a meeting, I'd have to pass the notebook around. People would have to squint. That wasn't ideal.
Carrying around a larger book is more cumbersome, but the benefits more than make up for it. The larger pages accommodate my noodle-like idea-stage drawings, wild scrawling and multiple nested mind maps. Best of all, I can keep the book in my hands and the pictures are still visible to people across the table.
It's not sacred
Don't spend any time deciding what does, or does not, go from your pen to the page. If it's on your mind, then it's notebook worthy. Sketches, phone numbers, random thoughts, nervous doodles, it doesn't matter — it's all fair game. The time to judge those ideas is later.
If you ever say to yourself, "I don't need to write that down," take it as a signal to get out your pen and start writing.
By the way, use a pen. Erasing is forbidden if you want to do this right.
Paper or Pixels
I've gone back and forth between using paper and an iPad for my notes over the years. I love using the iPad for most things, but I really enjoy the immediacy of scrawling in a notebook. Maybe it's just conditioning, but sketching on a screen makes me think 'end product,' instead of 'rough drawing.' If you don't have that particular mental block, I recommend the app Penultimate available at the iTunes app store for $0.99 . It's easy to use and just feels the most like a real notebook of any app I've used.
Analog Thinking First
As digital workers, many designers stray from the analog basics. If you adhere to at least one old-school method, make it a notebook (or simulation, thereof).