Update: There is still a bit of burnt popcorn smell going on in the kitchen. I have no idea how to get rid of it since I've tried vinegar, baking soda, vinegar + baking soda (fun!), SOS pads, soap, etc. etc.
But the real reason for this post is just to say that yesterday, I went from this:
Oh, well. The great thing is, hair grows back. So if I decide that I do regret it, I can start growing out my hair again and a year from now, it will be long again.