Make sure you clarify a few things in advance besides salary:
-Will you be responsible for care of one child? Two? All children?
-How many hours a day are you “on call”? Are you expected to be taking care of child / children from morning to night? Mention in advance that you would like sometime for yourself. You can negotiate what time of day and how much time you need.
-Are you expected to be available if something comes up during the night?
-Are you expected to care for child/ children only, or will you have other responsibilities as well?
You”ll have a better experience if you know in advance what’s expected of you.