Oooo yeah

So there I was at NWKnit tog last night with that accursed teva durham cardi pattern and I'm at the point where it says 'after 1/2 an inch start to divide for sleeves' at which point it says 'join another ball of yarn'. JOIN ANOTHER BALL OF YARN????? I'm already knitting with 2 balls of yarn and this isn't intarsia, it's all one colour. So Teva wants me…