She also learned this week how to use one of her toys to pull herself to a stand. Previously, she could only do that holding onto our hands. I think she'd be able to do that in her crib too, if she were in her regular crib instead of a pack-n-play right now.
She's getting so smart and strong. And sleepy. That whole sitting thing was just too cool for her, and she couldn't figure out how to fall asleep for an hour and a half after that.