I was so dubious as I knitted this. How could a slab of warped garter stitch become a balanced symmetrical cute jacket???
I've really enjoyed this from a knitting perspective - it's a fun project - but I think I'll enjoy the next one more now I understand how things work.
What I would do differently next time.
1/ Use a finer yarn (10-ply/worsted weight is way too heavy for a baby)
2/ As described in the excellent KnitWiki, change the pattern to avoid picking up stitches on the wrong side.