I wanted her sweater jacket to have real texture and weight so I thought double moss stitch might be nice. Only problem is, I've never tried it before, but hey, how hard can it be, right??
But after a slow start I got it. The most important part is to keep track of what row you are on.
There seems to be a couple of ways people do double moss or double seed stitch
1) Working on a row with stitches in multiples of 4
Rows 1 & 2 knit two, purl two, repeat
Rows 3 & 4 purl two, knit two, repeat
Repeat these 4 rows for pattern.
2) Working on row with stitches in multiples of 2
Row 1 purl one, knit one, repeat
Row 2 knit one, purl one, repeat
Row 3 knit one, purl one, repeat
Row 4 purl one, knit one, repeat
Repeat these 4 rows for pattern
I decided to use the latter, example 2.