Ian's Shoelace Site
There is also a book on the mathematics of lacing your shoes:<p>The Shoelace Book: A Mathematical Guide to the Best (And Worst) Ways to Lace Your Shoes<p><a href="https://www.amazon.com/Shoelace-Book-Mathematical-Guide-Worst/dp/0821839330" rel="nofollow">https://www.amazon.com/Shoelace-Book-Mathematical-Guide-Wors...</a>