I read a story about a woman who was a secretary. She got tired of typing errors (I'm not sure what they used to correct them in those days,) so she came up with the idea of painting over the letters. "Liquid Paper" was borne, along with a woman who quit her secretarial position.

Don't bicycle commuters have some ideas that could be applied in their realm of experience? I have so many "do-it-yourself" projects I have fiddled at that I am sure we have lots of possible ideas.

After all, the Wright brothers were bicycle mechanics.