zlacker

I had to use the secure knot: https://www.fieggen.com/shoelace/secureknot.htm

Not sure why, but single knots always come undone for me pretty quickly - including the Ian Knot you linked. I used to do a double knot and now the secure Ian Knot.

>>the_pw+(OP)
>Not sure why, but single knots always come undone for me pretty quickly

Since you've read about knots I'm sure you know this, but it's worth mentioning for others in the same situation - if you find your laces come undone very easily with a simple traditional knot it may be that you're not balancing the starting knot and the finishing bow, leading to a "granny knot" - https://www.fieggen.com/shoelace/grannyknot.htm

>>the_pw+(OP)
This. I've been tying my shoes this way for 15 or 20 years and they essentially never come untied unintended while still being able to be pulled open with just a single tug. The security of a double knot with the convenience of the standard knot.