Like most writers, I write notes to myself in the first draft.

Standard

Here’s one I just found:

[The blank spaces here suggest I was planning to add something to this scene, but now I can’t remember what. Note to self: Make notes to self.]

In other news, I just added a very touchy scene right into the middle of two tense sequences. It’s a bit of exposition, but I think it’s just about what I needed. Color me pleased.