This Herringbone pattern is beautiful, and she gives lovely step by step instructions, WITH pictures! Whit's Knits: Big Herringbone Cowl - The Purl Bee - Knitting Crochet Sewing Embroidery Crafts Patterns and Ideas!
If you cannot knit, you could add a backing for strength and transform an old sweater into a tote bag. Attach ready-made leather handles. Love the bag but I would rather knit the entre thing rather than use an aod sweaters