A buddy and I were talking about this earlier. One of the modern marvels of the internet is YouTube. You can learn anything that you want to learn on YouTube, and I use it constantly.
For example, I build my last stud wall, maybe ten years ago. One of the things I always have to think about is framing a stud-wall corner, and I'm going to have to do that on a project in the coming months, so I thought that it would be a good idea to check YouTube and get my bearings. Sure enough.
I remember all I need to remember now, and I'll just leave taat there so I can find it later.