I just started using the bar-end lights this fall. I also have a PlanetBike blinkie attached to my seatpost near the top of the seat-tube so it doesn't get hidden by the seatbag and a CateEye clip-on blinkie attached to the light-loop at the end of my seatbag. I'm additionally thinking of getting a rear blinkie to strap to the back of my helmet.