I'm kind of designing on the fly. Seems to work OK since the sweaters are so small, mistakes don't take too much time to pull back and re-do.
I designed this one, but sort of didn't . I started with a seed stitch border, and thought I would move to some sort of slip stitch pattern. I tried a few, and didn't like how the variegated yarn looked in the patterns. So, I just went with the seed stitch flow. When I got to the yoke I went with stripes with a garter stripe. I liked the way it looked on the last project. I'm pretty happy with the final product.
Now, I'm not designing a gansey the same way.
I've been thinking a lot about how I like basket weave patterns. I had some cotton/acrylic from before 2000; enough for a baby sweater, but not enough for much else. So I started off with some basket weave.
Then I needed a new skein and remembered that the orange cotton/acrylic had come in two types, one plain and the other with chunks of otherness.
Since I didn't do the calculations, I reworked the neck twice and the button bands three times. Finally got it where I wanted.
I could have stayed with basket weave, but thought that the change in yarn type would look unintentional. So, I made a little border and changed to a different knit purl pattern. I picked another for the sleeves.
When I started the second, I noticed the first had a mistake, so it has to be pulled back and worked again.
Oops.