Be seen on the road with a brake light modulator. When pulling your brake lever the brake light will flash three times before going solid. Every time you pull the lever it flashes three more times so you can get as much of a driver's attention as you want while on the road. Useful scenarios for this are when you're stopped at a traffic light or stop sign and want to alert the driver pulling up behind you that you are there, or if you want someone tailgating you to get the hint and back off a bit.