They cooked. They bought diapers. They were available round the clock for emergency/panicked phone calls. They came over to hold the baby when she just didn't want to go to sleep. My mother-in-law even spent the night once, so we could get a little bit more sleep.
Obviously, I'm lucky that both my mom and my husband's parents live in state.
But, it's a good reminder (this is something that is stressed in Asian families): don't forget your family; they can be your support system no matter what happens (familial piety).