I think Demon!Dean should have some required wardrobe changes...
I mean we all love Dean in plaid, and all of those shirts of his that are out favorites (*ahem* like the burgundy one)
But now that he is a Demon, I think until he is himself again he should be required to wear…
A crown, at least for part of one episode
A TIGHT black v-neck t-shirt with even tighter jeans
when i find myself in times of trouble
the 12th doctor comes to me
speaking words of wisdom