Been there, seen that. Some notes: - the two-way switched lights may have never worked as intended. So no matter what you do with the endpoints it may never wo

Been there, seen that. Some notes: - the two-way switched lights may have never worked as intended. So no matter what you do with the endpoints it may never work. - doing it yourself is a waste of time and money. You'll learn nothing of value and will toss it all in the end. -Proper solution is to hire a certified electrician who is familiar with two-way lights to fix/replace the current wiring. If you rent, pay the electrician and send the bill to the landlord. Keep a copy. If landlord hasn't paid by the time you move out, bill him for the price. If he stiffs you, sue him in small claims court - he'll pay or you'll win. Cheapest fix: run an extension cord with a bulb to the upstairs light, turn it on and leave it on all the time. Electricity is cheap, bulbs efficient. Having a light on inside keeps burglars away, esp. bathroom lights (according to Malcolm X).