One of the smartest guys I know always carries index cards and a set of pens and records almost everything he works on that way, before putting it into a formal

One of the smartest guys I know always carries index cards and a set of pens and records almost everything he works on that way, before putting it into a formal digital design. I carry a notebook and I highly recommend it for all the reasons described but I have one more - going through them years later is a huge amount of fun. Seeing old ideas sketched out makes me happy and I keep all my notebooks in a stash for later perusal. Looking at old digital documents doesn't give me the same feeling, with tangible paper and ink bringing back memories.