Lists and planning notes. Got a million ideas wants and needs, if I want them to all get done then they need to go somewhere! But it can just be something basic and vague, like "top of side panel" will mean enough for me to come back to it months later and remember what the plan was. Most of it is cleaning/organizational.

Paper, unless it's not nearby I'll just make a list in google notes but otherwise I'll always do a wide page.

Title, intent, then split the page based on what you decide. I just organized our towel/medicine/petfood closet and freed up 2 1/2 shelves just writing out what was there and making a mockup.

Currently in the process of writing out and compiling my PC rebuilds since it involves moving main hard drives to different motherboards ;( excited but also not, lol