Finally find someone who uses the same method to plot! *Hand shakes with xonceinadream*
The difficulty for me are try to filled the visual descriptions, I'm not those who use visual thinking, even though I draw more than write in fandom now.

While the story is forming, we all need to plot in some stage.

I'll take "Draco’s new neighbor keeps him awake late at night," because it's obvious that the neighbour is Harry, and I automatically assume it's sex noise because of my filthy mind.
No, it would be too predictable and them turn into pwp all the way down. It was mechanical noise. Why did harry do that? He had OCD. What kind of OCD produce so much noise? He felt unsafe even after war. He used both muggle locks and wards with illusion charms, and he tried to improve them every day. (The muggle lock or the wrong attempt of spells produced most noise) Draco, with his wit and intelligence, solved all of it and entered the house. Oh no, Harry must be panic if Draco go straight in. We need them warmed up before the final. Harry seldom went shopping but he still needed it. (didn't trust owl catalog shopping, they were evil.) Draco saw him around in mostly muggle shop and exchanged some conversations. Draco never give him the dubious look of why Harry bought a huge amount of supply(so he didn't need to get out for three weeks). Harry felt safe around him, unlike those cashier who always gave him suspicious look, which made him want to take out the wands. Draco was suspicious but he hid it well. Harry knew he needs help but is too afraid.
Plotting finished! I think it fits in "Draco finally gets the chance to be the knight-in-shining-armor" too.
I want to read the last one! It will be lovely to see Draco in action and solve an enigma.