For Olive, it's definitely when she rolled over. She had been a bit on the slower side for milestones (relative to her brother), so it was a huge relief when she finally rolled over!!

For Charlie, I'd have to say that it was so exciting when he took his first step! Crawling was pretty awesome too. I guess I got excited about all of the big milestones (crawling, walking, talking).

What milestone(s) did you get most excited about with your LO?