I was looking on this forum for an example, but I had trouble finding one, so I included one that I had made up. It's in excel, it has dropdowns, and data. I'm too lazy to erase the data, so you can delete it and change the dropdowns to whatever categories work best for you.
The excel sheet basically has two components. 1. The error log
. I made it so it would be easy to identify what I got wrong and what kind of problem it was. 2. What I call a knowledge base. If the problem wasn't based on some stupid error or carelessness, I wanted to keep what I learned about that problem so that I could memorize and learn it.
Hope others find this useful.
PS. Apparently I will have to wait until I have made 15 post before I can add an attachment or a link even. Crazy. If that happens, I will edit this post with the link to the attachment.