The main things?
I glued a little advertising magnet on my machine, magnet side up, and drop my pins onto it as I pull them out.
I have a portable reading light with a flexible neck and a clip-thingy to hold it in place. I clip it to the top of my machine and the light is the right height to for my needle and sewing (every little bit of light helps!) When I'm not sewing, it goes back on my book-in-progress.
Post-its to write the row number/block positions.
All sorts of recycled plastic containers.