Clothing and makeup and hair and all of that so much indicates the kind of person you are inside and the person you are presenting on the outside. Sometimes they are in conflict, and sometimes they are the same. That psychology of the exterior informing the interior is just so interesting.
I'm a morning person because I learned to write my novels while still practicing law. I would get to the office at 6:30 a. m. and write until other people arrived, around 9. Now I still do that. I start at 6:30 or 7, and I'll write until 11, then take an hour off, then work until about 2 p. m. By then my brain has had enough.