This was my second p. cardigan and I wanted to make it with only three buttonholes. I like it better this way and imagine it will be easier for mama.

attaching I-cord to worked sts:
http://youtu.be/YboYJixX3K4
(I didn’t end up doing this as I had imagined. Instead I used the pink yarn, which was a fingering weight and I probably wouldn’t do again, on the edging.)

After the third button hole round, I joined in the round.

For the second sleeve, I found this helpful video to eliminate the holes under the arms created by making the sleeves:
http://youtu.be/LIUeMvFlkok

I knit 3” from pit end of sleeve, before changing to the CC yarn.