Sitting up and mobile

Little man has had quite the developmental burst over Xmas break. He is sitting up like a pro! We still sit within reach of him because he will flail back every once and a while, but he's upright. His new favorite move is leaning forward onto his hands and knees and kind of bopping back and forth before landing on his belly. He's managed a hand forward but ends up flat. However, he has this little army crawl/dragging technique where he pushes his left foot to propel himself forward. And it's very effective at getting him whatever illegal thing he really wants- paper clip, piece of fuzz, big guy toy,etc. it's amazing how fast it happened! Something about the myriad of new toys and being home with everyone!