We have two daughters; one is 2 years old and the other was born a week ago. Right now, daughter 2 is sleeping a lot and doesn't cry much, but if my experience of the first was anything to go by, that will last for about 3 more weeks and then she'll be more difficult to get to sleep (and noisier).
What are effective strategies to help both of them to sleep? (Currently our eldest sleeps in the next room to us, while our newborn sleeps in the same room as us.)