It's almost exactly like the "standard" shoelace knot I've used most of my life, but with just an extra tuck, and it virtually never unintentionally gets untied. It's fast, easy to put on and easy to take off. Highly recommended.
I also like Perry's Perpetual Knot.[2][3][4][5][6]
The idea behind it is that you only ever tie it once, and then only ever have to loosen and tighten it rather than re-tie it.
On one pair of shoes, I had Perry's Perpetual Knot adjusted so that I never even had to loosen or tighten it either. From then on I'd just slip my shoes on and off without needing to adjust it or re-tie it.
[1] - http://www.fieggen.com/shoelace/turquoiseturtleknot.htm
[2] - http://web.archive.org/web/20051203081429/http://web.ukonlin...
[3] - https://s24.postimg.org/ng1fp6lj9/perrys_perpetual_knot.png
[4] - https://i.imgsafe.org/bee20e4850.png
[5] - http://i.imgur.com/mzyXuet.png
[6] - I'm uploading the instruction image to a bunch of image hosting sites, so hopefully the instructions will be available "perpetually", since archive.org doesn't even seem to have saved them.
