Cluster Stitch Baby Blanket Pattern

Here is the pattern for the baby blanket that I made for Matthew and Janine's soon-to-arrive baby girl. This blanket measures 37" square, but can be adapted to any size.

Materials:
Aran Weight Yarn - I used almost 2 skeins of Caron One Pound in Grey
J hook

Ch. 104 (odd number + 3)
Row 1: 3 dc tog in 4th chain from hook, ch 1, skip 1 stitch, *3 dc tog in next stitch, ch 1, skip 1 stitch, repeat from * 49 times (51 clusters)
Row 2: ch 3, *3 dc tog in chain space of previous row, ch 1, reapt from * 50 times (51 clusters)
Row 3-62: repeat Row 2
Row 63: sc across - 1 in each cluster and 1 in each ch space (101 sc), fasten off
Row 64: sc across the opposite side of the beginning chain, 1 in each cluster and 1 in each ch space (101 sc), fasten off

Edging (optional)
Using a contrasting color, make a shell stitch (5 dc in the same space) in each ch 3 space along the unfinished edges and in every second space along the top and bottom. I ended up with 26 shells along the top and bottom and 31 along the sides (114 shells)