It's amazing how fast babies grow (both physically and intellectually). Every day is a new experience. Seeing the first smile is amazing, and I hate to say it, but you just gotta laugh at the first temper tantrum. Celeste is only 6 months old, so stay tuned for more changes.
Oh, and for a tracking of her physical growth, check out the photo album. I've been taking a photo each month next to a stuffed animal so you can see how she's growing.