Mr. Porter, an online men's style shop, teamed up with Drake’s of London Creative Director Michael Hill for this helpful video on folding pocket squares. Mr. Hill (he seems more like a "Mr. Hill" than a "Mike," right?) offers four options for folding the same pocket square for four different looks: business, eccentric, casual, and elegant. I'm not sure if I can pull off all of these, but it's nice to have all the styles side-by-side, and I appreciate the video format over step-by-step images or a diagram.
Check it out: