I'll have to give that secure knot a try. My son keeps getting his shoelaces undone, and we tend to solve it with just an extra knot on top, but maybe there's a better solution.

I've been tying my shoes for a couple of years now with his "Ian Knot" method, and it works very well. I never mastered the asymmetrical single-loop method, so all my life I'd been doing the bunny ears. Maybe the asymmetrical method doesn't make sense to me for a symmetrical knot. The Ian Knot makes more sense and is easier and faster.

Others in the family tried it too, but I don't think it stuck with them.