Kinda odd but I make the shower warm, turn off all the lights and lay down/sit there. Your eyes will adjust to the dark from the light under the door. Its calming to not have anything going on, tv, noise, light, etc. Kinda meditative.
I do the same, but I just leave a little bit. I usually bring the laptop into the bathroom, turn on some music and I can "feel" and just sing/flow with, and turn the screen brightness down to 3 of the lowest settings.
Also I usually bring the laptop in the bathroom for the showers anyway so I have music - I try to inject music into as many parts of my life as possible.