Sometimes we could fall dawn when the light at our house is off then we walk in to the stair. The solution is we have to put the light at the stairs. Stair light is a low voltage (and this implies a low cost) LED system that will allow you to light up your stairs with or without a switch. The lights open up automatically when you are near the stairs, but they can also be controlled. There is also a generator connected to the system, so in case of a black out the stairs will still emit light for another 12 hours. Each stair is illuminated by a three beam spotlight and all the wires are intelligently hidden.
The overall cost will be quite high, but you might consider only adding at every other step for example and also for your own safety.