For anything you could ever possibly want to know about shoe-lacing try
http://www.fieggen.com/shoelace/knotcomparison.htm
You find all sorts of things you never knew you never knew. Try the "Ian's Secure Shoelace Knot" for a knot that doesn't flop undone, or have a look at the "Lacing Shoes" menu in the left sidebar to find all sorts of ways of lacing your shoes to make them wider, narrower, prettier or weirder.
The things you stumble upon on the internet, eh?
I've been invisible for a while - profile got deleted, so I'm back and 'friendless' with a post-count of about zero - so hello again everyone.