Earlier I was reading an interesting article on #Rascal about a Personal Player's Handbook.
The gist of it is that it is a notebook where you write down rules that are specific to your character and that you can easily reference when needed.
You can also use it as a journal for your characters' adventures.
Since I have a terrible memory for rules I think this would help me a lot.
The article is for subscribers only but in case anyone is interested anyway:
https://www.rascal.news/my-must-have-tabletop-tchotchke-is-the-miniature-phb-i-made-myself/
#TTRPG