I mention how amazing it is watching my son grow in almost every post I write, but it's true. Just when my wife and I think 'sometimes I wish he would stay like this forever' he does something that makes us immediately eat our words.
His recent thing is trying to imitate us when we sing songs, especially 'Head, Shoulders, Knees and Toes', and his lovely habit of bringing me something when I get home from work. It could be a bit of tissue, a book or a bit of food, but he always gives me something and looks pleased as punch when I thank him. Wonderful.