From an interesting article about how Tim O’Shaughnessy, the CEO of Living Social, manages his day:
I carry a little leather Moleskine notebook with me everywhere. It’s filled with lists, like numbers I want to discuss, agenda items for staff meetings, or the biggest threats to our business. If I have an idea, it goes in there. I often flip through my book at night. If there’s a good idea, I will type it up and send an e-mail. I go through one notebook every month, sometimes more.