Because ADHD brain, I just made this thing that lets me put a command in a new gvim terminal buffer. So I can do

$ window top

and it'll make a new gvim terminal buffer and run that in it.
https://gist.github.com/madewokherd/1c89a195af70b02dd5e07c3ab7a237ad

(Also made this morning: a "pager" that does something similar but with stdin, so man pages can go in a new buffer by default.)