Started documenting the things I learn in a section of my website called "snippets". It's purpose is to be a registry of copy-paste resources, like a personal stack overflow, and I'm trying to keep it as small and short as possible. Also I don't write things there right away. First they go in a "backlog" in my notes, and once I require the knowledge but forget the details I transition it into a post on the website. This forces me to still remember stuff and helps keep only the relevant pieces around. Still very new to this approach, only time will tell if it's indeed worth the effort.