I have taken countless portraits in the bathroom. Not only of myself, but of my friends as well. I’ve always seen it as a tiny portrait studio, just big enough for two people, intimate, quiet, and often with exquisite lighting. (The fluoresent lighting above does not necessarily qualify.)
Several years ago, I was famous for a game we would play whenever we hosted a party. It was called “2 minutes in the bathroom with Andrea” (so illicit sounding!) and you didn’t know what actually went on in the bathroom until your turn.
My roommates and I always chose a colorful prop (a white cowboy hat, a long red cheerleader wig, etc.) and each guest would take their turn being photographed in it. I used an I-zone polaroid at that time, so by the end of the party all of the photos were placed on the kitchen island to be viewed. It was a blast.
And of course, you can always send your mirror portraits to the Mirror Project