I've been using Ian's Secure Shoelace Knot for... years? I can't even remember how long, but it's served me very well. I just love how much more secure it is and how symmetrical and balanced the final result is. It's also such a trivial upgrade for kids that have learned to tie their shoes using the "bunny ear" method... just one extra twist.
https://www.fieggen.com/shoelace/secureknot.htm
And like many things on HN, previous discussion: https://news.ycombinator.com/item?id=13399095