I've only got about 250 miles on my bike and I ride in an urban environment. Lots of side streets and traffic. If you are on public roads I have to say.. get a blinking tail light and head light. It could save your life multiple times. I ordered mine last week as I was almost killed by a cellphone talker driving a jeep grand cherokee who didn't see me as she gunned it across the street I was riding along. (in the bike path on the proper side of the street wearing green jersey and white helmet)...
let me add some bold print.
THIS COULD SAVE YOUR LIFE
cheap and effective:
http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1
http://www.ebay.com/itm/111157320523...84.m1439.l2649 <--- I found mine much cheaper than this but it's the one I have now.