Stumbling across Ian's site almost two decades ago was kinda-sorta life-changing, because I'd been tying the "granny knot" my whole life and had to resort to double-knotting to keep my damn shoes tied.

Ditched the granny knot for the Ian's Secure Knot (https://www.fieggen.com/shoelace/secureknot.htm), and have been using that ever since for every pair of laced shoes I own.