I can't believe it.
To celebrate, on Sat night he climbed out of the pack-n-play and onto the (very high) bed in my parents' guest room, made himself a little nest and went to sleep. I had the monitor turned on, and no one heard him do it. He's a ninja.
He has also started sleeping through the night. He has always slept at night, but has woken up once or twice and needed me to rock him or nurse him (still nursing! :) ) back to sleep. On June 18th I woke up and realized I had had a full night of uninterrupted sleep, he's slept through every night since (except if we've been out of town). I love sleeping :)
Last week he also had his first hair cut. We went to the barber shop and he did so well - he just sat in the chair and looked around. I made sure to save his baby hair, and he got a certificate and a ribbon for being so good, but I decided he didn't need a sucker (because I am the fun police).
One last milestone, JJ is finally into saying "Daddy." I know it makes J happy, but for the most part, he just runs around babbling nonsensically and singing the "Mama Song." And we think he's perfect :)