I came across this photo on Flickr that illustrates a simple and creative way to give basic slacks some cycling utility.
This cyclist has stitched a highly reflective triangle of 3M inside both pant legs. When the legs are rolled up to avoid chain grease, the reflective patch is revealed. This is a great solution for urban cyclists and commuters that want to increase visibility without sporting cycling specific fashions off their bikes.
What about you? Do you have any practical tips for maintaining visibility?