hey Chris, why the "You're so vain" comment? Seems the fellow is just putting down what works for him and tips that may help others.

back to foot smell, I too have found wool socks to help, but more importantly for me, getting out of my bike shoes right away at the end of day, and even at points during the day to let things dry out, certainly helps with keeping any athletes toe situations at bay (which for me is an annoyingly easy thing to occur if I dont keep on top of things and always use clean socks)

Some shoes probably breathe better than others also, which makes sense as a factor simply from airing out and keeping moist feet less moist than other shoes.