A.H.
My son's hair was really thin at that age, too, with the curls and the frizziness. So, I just took some scissors and started shaping it a bit - not really giving him a short cut, but a shaped cut. (Be sure to give him a snack, a movie, or some other favorite thing to make this fun!) After I did that, his hair really thickened up and became much more manageable! Now at two he has thicker hair than either of my girls did at that age, even though he started off the same way they did!!