you need 2 for going straight down the road and 2 for the ditches. Everything after that is just extra sweetness.
bums are in downtown Houston. but once deer season comes around and i have to drive to my land i might consider more
My driving lights in my valance light up the sides enough for me to see ditch bums. Maybe the Alaskan Ditch Bum is a creature one needs to keep an eye on?