We're going to a black tie wedding in another city, where a college friend of mine lives. My friend agreed to come to our airbnb and watch DD (21 months). She'll probably be there from around 5pm until midnight. DD goes to bed at 7:30. She has already said we can't pay her, but I want to anyway! My plan is to offer her cash and if she really refuses I'll mail her a gift card to a nice nail salon. ETA: The college friend doesn't know the couple getting married.