suitmanden said: If instead of granny knots, you made reef knots in your laces, then pull on the bows to tighten it, they would never come undone. You can always tell a reef knot because it naturally lays across the shoe instead of fore and aft.
This is true, for the most part. Although I do (k)not question the fact that the reef knot is far superior to the granny knot, I have found it incredibly hard to break a bad habit that began two decades ago. Fortunately, shoe-tying was not one of the skills required to become an Eagle Scout - but I did learn to tie a mean taut line hitch.