Congratulations! You had a baby! Now, drink a ton of water!
New moms are supposed to down a massive amount of water every day in the weeks after childbirth to help stay hydrated, aid breast milk production and ease constipation. I can virtually guarantee that before leaving the hospital, your nurse will present you with a water jug the size of your newborn babe with stern instructions to "Drink up, missy."
Grandparents can make their mission to keep Mom hydrated simply by ensuring that her water jug is always full and close at hand. You can't truly appreciate how difficult it is to walk to the kitchen for a glass of water until you have an infant nearly asleep in your arms or are in the midst of a marathon feeding session.