Did not bind off the individual squares but instead put all stitches on scrap yarn to come back and Kitchener together. Then I followed Nienkeknits’ grafting:

Knit Stitches
FN: go into stitch as if to knit, pull that stitch off needle, go into next stitch as if to purl
BN: go into stitch as if to knit, pull that stitch off needle, go into next stitch as if to purl
Purl Stitches:
FN: go into stitch as if to knit, pull that stitch off needle, go into next stitch as if to purl
BN: go into stitch as if to purl, pull that stitch off needle, go into next stitch as if to knit

I did have a small hole in the center of the blanket after grafting all four squares together but I just sewed it closed.

After grafting all 4 squares together I added more of a trim around the edges to make it bigger and look more finished. I ended up doing 12 rows of the double moss stitch total. I think it adds just enough of a border without making it look too thick.

Knit 3 1/2 squares with 2 skeins of yarn.

pinhole cast on method: http://blog.tincanknits.com/2012/05/25/pinhole-cast-on-tu...