My regular shoes.

Or my magenta Doc Martens. Or my Ariat cowboy boots. (My Ariats are surprisingly fabulous for cycling. Although, considering stirrup/pedal physics, I probably shouldn't be surprised at all...)

IMHO, this is the best waterproofing goop I've ever used: http://www.campmor.com/nikwax-paste-...oofing-1.shtml