Barrett is (pretty much) walking! Matt has taken to calling him Hershel. I've been trying like crazy to get it on camera, but he's never been one to perform on cue. So far I can only capture him taking 5 or 6 steps at a time and then falling on his tush. I know that's still pretty good, but I'm trying to get a shot of him making it to where he's going before I post a video.
He also really loves to weave around the dining room table and chairs and have me chase him. He finds this game VERY exciting (as you can see), and it's incredibly cute.