My shoe size is such that I can only get road clipless to fit my feet. On my commuter bike, I've gone back to clips & straps so that my street shoes work. On my road rides, I switch back to clipless since I'm not going to be walking much with those big hard lumps under the ball of my foot.

In Germany this fall I had a helluva time finding clips & straps for my bike. The local LBS's said 'no one uses those anymore'. At least there are multiple types of clips that are available via the web.