I quickly save them to Google Keep, and sometimes, I add a label and a quick comment.
Later, when I think about a given subject, work on a post, or an article, I search and pull the list of related items.
Editing in Google Keep it's relatively easy, as long as I work in the portrait mode. I do that usually on my tablet, or a phone. Regardless that I do have a Bluetooth keyboard, I usually find a comfortable position that is not a desk sitting and I use the Swipe function on my Google keyboard.
When i am ready, I transfer the note to the Blogger app to start a new article.