zlacker

>>revise+(OP)
http://fieggen.com/shoelace/secureknot.htm will hold your laces ties where a standard knot will work itself undone. This is particularly useful for round, synthetic laces.

Takes longer, though.

>>Julian+Rx
I love this knot! I learned it a few years ago, and my shoelaces never, ever get untied accidentally. It has improved my life.