1. It has to be easy to tie.
2. It has to stay tied - always.
3. It needs to be as easy to untie as pulling on a string.
Well, here it is. The perfect shoe knot.
Knots are hard to demonstrate in words and pictures. May I suggest that you watch this video for a short demonstration of the technique.
Step 1: Tie an Over-Hand Knot
this demonstrational video is is probably easier to understand than the verbal description.