For a lovely thick and spongy rib design the old fashioned brioche rib stitch can give a different look for the ribs of many garments. Also used by itself it is great for scarves or cowls as it is a true reversible stitch so both sides of your work look exactly the same. I've used it here on the hem of this vest that I am currently working on. K1B (below) is easy once you get the hang of it. Simply insert the right needle through the centre of the stitch below the next stitch and knit allowing the top stitch to come off the needle.
Row 1: Knit
Row 2: *K1, K1B* K2
Repeat Row 2 only
Grandmother and knitter from the land down under of fine merino wool.