There's so much to learn. Great topic.

I shoot almost all my shots with a lamp without the shade hanging upside down from a nail on the floor joists above my dio table and pull up or down depending on what time of day and angle of shadow I'm lookong for. For night shots I just turn on the pull string basement lamps on the other end of the room and shoot on landscape setting which keeps the shutter open getting crisp results. I'll use a red laser pointer here and there when looking for that effect.