"Flat Braid" Square Joining Method for granny squares. Creates a lovely edging! Another method of joining squares, a simple ch 3 interlocking, done as the last rnd on the squares. Join as you go, could not be easier.
Join Crochet Motifs with One Seam from Crochet is the Way - Learn this seamless joining technique for your square or rectangular projects . Get the link for this pattern and more at Hookin' on Hump Day.