One of the ways I use the staging area is as an ephemeral wip commit: I've got a change that runs and gets me incrementally closer to the desired result, but is

One of the ways I use the staging area is as an ephemeral wip commit: I've got a change that runs and gets me incrementally closer to the desired result, but isn't yet an atomic commit. Changes to that state can be built upon, undone etc until I've got something I'm happy to commit.