Codex has transformed how I run my companies. I have almost 40 businesses, and trying to keep them all in my brain can be insane. I own: Software companies Restaurants Newspapers Social networks A coffee maker company Each one has totally different context, business model, and sorts of people. For two decades, I struggled to keep my arms around it. I couldn't keep it all in my head. I hated holding people to account. Details slipped through the cracks. And worst of all - the emotional…