Lights are a nescessity, but don't forget about clothing: A screaming yellow jacket or similar attention-grabber bright colors) is an important safety item. Reflective patches are good, too - but there is something about the neon yellow jacket that seems to grab the attention of even the most idiotic drivers, in particular in low light situations.


(Tbere is also a cult of cyclists who sincerely belive that wearing this yellow biking jacket will grant them legal immunity to traffic violations -- and magical powers, effectively making them invulnerable to the follies of motorists.)