A little bit hacky, but I’m a huge fan of the Google Chrome plugin Screencastify.
You can record a walkthrough video of your app (what it’s like in live and through your editor). It’s more fun for nostalgia…being able to see how your app has evolved over time.
What I also encourage to make a backup branch of sorts. (Specifically, if you’re going to start hacking away at an app, and afraid of using the revert to previous function, make a copy of your app before working).
There were some good general comments on this theme in this post: