Well, today has brought some interesting developments. Jack is officially "crawling" - really more of an army crawl but he's definitely mobile! If that wasn't enough for one day he also started pulling himself up. I had just put him down for a nap and was in the other room. I heard squealing coming from Jack's room and I run in to see if he's ok and he's... STANDING in the crib! Goodness, we're in trouble...time to get babyproofed!