This girl is awesome.  Of course I’m biased, but really…she is always happy and smiley!  And I don’t remember any of my kids learning milestones as fast as she is.  I can hardly keep up!   She rolled from back to front at 3 1/2 months, rolled over to her belly to sleep at 4 1/2 months, and she is now sitting up for about 15 seconds at a time (unassisted) at just under 5 months!  She is crazy.  🙂