I have been washing my hair in the kitchen sink. I have my PC set up in the breakfast room. So, I have been drying my hair there because I couldn't stand up that long in the bathroom.
So, since I didn't have a mirror, I thought to myself, "What would McGvyer do?" Of course, use the Webcam! I'm a freakin' genius. It's so obvious.
Of course, it's not a perfect solution. I can only see the front of my hair, and when I look in the webcam, the side I'm brushing is the opposite. It gets confusing.