I live in the sticks, so lots of curvy hilly tree surrounded roads. I love it... BUT. Night riding anywhere near commute times is a risky proposition. On the highway and int he city I prefer to drive at commute time as the drivers tend to be well practiced, but on the back roads they are so well practiced they know the exact line they want to put their car into and will often not see a biker until its (almost) too late. I've had more close calls during commute times then all others put together. So if I do any night riding, it tends to be later. Then the biggest risk is the idiot drunk teenager, but you can usually hear them coming.

Also, try to avoid dusk. Dusk makes ithard to see anything, and your lights may not be bright enough until its darker out.

Oh... and flashing stuff if you want to be seen. 1000 options out there, juts make sure it flashes and it will grab drivers attention better.