The use of clip-in pedals and their accompanying special space-suit like footwear seems to be some sort of dividing line for cyclists, like having a bike you can't buy at a department store (read: Walmart) or getting your first case of road rash. There are advantages to clip-ins, of course--your foot stays put (even when you don't want it to, which, of course, is also a disadvantage--watchers of the TDF saw Lance barely get his foot out of the pedal in time to avoid going down), and the rider can actually pull the pedal up as well as pushing it down. This last has obvious advantages for racers.
However . . . there had to be a however, didn't there? For the rest of us, meaning those who don't race or don't see racing, whether against ourselves or other riders, as the be-all and end-all of cycling, the question arises as to what shoes are best for the flat, non-clip-in, no-straps-attached kind of pedals. My favorites have come to be the Chuck Taylors pictured here in all their big red glory. They have the advantage of being light, and the soft rubber soles grip the pedals sufficiently that the foot doesn't slide around, even when it's wet. They do this without giving the feel of riding barefoot. Best of all, perhaps, they come in colors, and no, the last time I checked, you can't buy them at Walmart. Which gives them some sort of distinction, I suppose.
So--favorite riding shoes, anyone?