Check these great examples of lighting your home.
"Don't light up your home like it is a convention"
If you omit task lighting, like floor lamps and table lamps, reading on your couch or writing at your desk could strain your eyes.
Combine ambient overhead lighting with the intimacy of a reading lamp.
Stairs can be lit subtly.
In bathrooms it is important to allow lighting for mirrors so there are no shadows over your face.