Lazer Blade Helmet
If you're a Strava user you can sign up for Strava Leagues for free and join the Swinnerton Cycles - Mileage Challenge league. The person who records the most miles in March will win a Lazer Blade Helmet.
There are less than 40 people in the league at the moment ... I like those odds!
I don't think that there are any. Just make sure that you track all of your activities