On Monday, our daycare provider told me that the last 2 days Charlie was not yelling to get out of the pack and play at the end of nap, but instead climbed out himself, and then knocked on the door to let her know to let him out of the room. 

Zoinks! Maria didn’t do that until she was 2 1/2!   Our crib is quite a bit taller, but on occasion that I know of he was trying to crawl out.