Easy blanket stitch -- This easy stitch is perfect for an afghan or blanket. It is just sets of 3 stitches, one single crochet and two doubles. Use it for a baby blanket in a pretty pink or blue or for a regular afghan with bright colors!
Crochet - Granny Spike Stitch - leaves fewer gaps, because the second double crochet is crochet through the top of the second double crochet of the row below. Possibly use a dc,tc, dc pattern in the clusters? From Do It Darling.