The yarn was one I bought at Mind's Eye Yarn's Sock Madness last year. I love the colors of this, which are both boy-friendly and remind me of smores. Salvbard, stick-in-the-mud that he is, says they remind him of the desert.
Pattern Source: Not Just Socks
Size: 1 year
Needle: US 2 / 2.75 mm
Yarn: Regia Cotton Surf Color (~87g) in color 5420
Yarn Supplier: Mind's Eye Yarns
Looking at several of these finished garments in Ravelry, I was really struck that the rolled edge, followed by ribbing before the stitch pattern seemed to give this garment sloppy undulating edges. So I skipped the rolled edges completely starting right with the ribbing instead careful to make the ribbing to line up with the stitch pattern (unclear in pattern), which I think combine to give it a much neater appearance.
Also I knit the sleeves shoulder down and in the round both due to my distaste for seaming and because I think decreases on sleeves tend to look neater than increases. This required more math, but ultimately was the same as if I had done them as directed.