Wooly neck warmer

I've been knitting on and off for a few weeks now (I'm still not sure why I'm knitting in summer, normally I only knit in winter), made a baby blanket, and 4 hats... I decided to try my hand at another pattern making idea.  A neck warmer. 
(the one in the picture I only knitted to line 30 then bound off)

One size fits most, it fit me and my 7 year old. (she had more coverage on her shoulders)
1 skein of Cascade 220 wool.
Long tail cast on 84 on size 6 needles. (I managed to use 16inch circ. needle till row 30)
Join in a circle.
K2, P2 ribbing for....4 or 5 inches. (it can be folded over or left straight up the neck, depending on how much coverage is needed.  It can be pulled up over the lower face if needed)

Increase as follows:

1:K2, P2 pick up loop and purl
2:K2, P3 to end of round

3:K2, pick up loop and knit, P3 to end.

4 - 7:K3, P3 around

8: K3, P3 pick up loop and purl to end

9-13: K3, P4 around

14: k3 pick up loop and knit, p4

15-20: k4, p4 around

21: k4, p4 pick up loop and purl.

22-27: k4, p5 around

28: K4, P5 pick up loop and purl

29-35: K4, P6 around