Very nice tribute. I feel the same way about a friend of mine who we lost to Pancreatic cancer a few years back. He was in the same line of work as me and we collaborated on quite a few projects.
I still miss and think of him often.
Wrt to those folding rulers.....I have a few that were in my late step-father's tool chest and will keep them as a remembrance - but now that you mentioned you prefer them to a tape measure - you have me wondering if I'm missing something.
RIP to your friend, Chris.....