I use Planet Bike Superflash on the back of the rack...it's on the blinking mode whenever I ride. I have a Planet Bike front light that can be attached to the handlebar bag or used as a head light. THEN I have a second front light and red blinker on my helmet for those really dark and stormy days.

I use a yellow kayak rain top...couldn't see spending the money for something to cover just my big butt. I have never been so wet that I didn't get dry.