Re: How much water for a 13 month old?
I don't think there are many rules about how much water a toddler should drink after a year. It depends a lot on breastfeeding frequency- if your toddler is still mostly breastfed, he's unlikely to need much water. If he's nursing just a few times a day, he will need more. It doesn't hurt to have a sippy cup available to him at this point, especially at meals.
BF rules that don't apply after a year... I can only think of one. Before a year, you're supposed to nurse before feeding baby solids, so that breastmilk intake is maximized. After a year, you can continue to nurse before solids, or not, as you choose.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"