Crochet is a great way to join together knitted strips or squares, as in this rainbow bedspread. It's less stretchy than knitting, which means that it will give your blanket more structure and less sag. To join knitted garter stitch squares or strips together, insert crochet hook into a stitch at edge of each strip, pass yarn over hook and draw it through the first two loops on hook, pass yarn over and draw it through the other two loops. Repeat along the edge of the strips. You'll have a created a strong crochet seam - the perfect finishing touch for your knitting.