I've experienced a big productivity boost by using the desktop background of my 43" monitor as a whiteboard (blackboard actually). I have an jpg the size of my monitor that I jot things down on as text on the image. I can store meaningful small images the trigger my memory to do something. I've become so used to visually thinking about what I'm doing that I switched my text file todo list to markdown so I could store images in it.
It's surprisingly quick to keep my large jpg open in paint and jot or paste things to it and then reset it as the desktop background. I learned later this is called a "vision board"
Still, I'm so bad at spacing out that I need more than looking at my vision board monitor all day, so I use the Windows system scheduler to bring up a daily, weekly and monthly html file that reminds me to do things.