Clever!

For the less do-it-yourselfer, or the guy who has no reflectors --

http://www.dealextreme.com/details.dx/sku.8274 $1.88 bike mount

Or if you don't like these flashlights, these lights are a good deal brighter and only a tiny bit more expensive --

http://www.dealextreme.com/details.dx/sku.47706 $7.60 3W 60-Lumen 2-Mode Front White Light with Mount
http://www.dealextreme.com/details.dx/sku.18307 $7.43 1W 2-Mode 50-Lumen LED Bike Light with Mount