He's been "army crawling" for quite a few weeks now, but today he decided to try staying up on his hands and knees, and he did it! He was a bit unsteady and slow (much slower than he is at army crawling, lol), but he did it! And, I was able to get some video of it, too. However, thinking about it more, I'm not sure I'm so happy he's properly crawling already! It's already hard enough to keep him out of things!