A Word To The Wise
Never, EVER, have two lace scarves going on at the same time. Especially if one scarf has 41 stitches and the other has 51. Because inevitably, you will be at the end of a row on the scarf that has 51 stitches and you will count them. And you will say to yourself, "OH MY GOD, where did that extra 10 stitches COME FROM?"
Then you will look carefully at the pattern and be unable to see where you went wrong. But the scarf is a gift and how can you give someone a scarf with such a glaring error even if you can't see it? So you will tink back a row. And you will drop a stitch. And you will count. And you will say, "OK, I'm getting somewhere, I'm only 9 stitches off now."
Then you tink two more rows. Drop another stitch. Count. "Ah, 8 stitches off, getting closer."
But now you are frustrated. You start wildly ripping. And after you've ripped out 10 rows you finally freakin' realize you're ripping for no good reason. So you start knitting again on row 3 of the chart because that is where you think you are.
And you get to the end of the row and realize that you were supposed to knit row 5.