This sounds really ridiculous as I type it, but I've taken to driving in the dark wearing my prescription sunglasses. Even then I flick my eyes from side to side to avoid the same piece of retina going to sleep.
It could be because I only passed my test two years ago, but every time I fill up with petrol when it's dark I walk around the car and check all the lights. I passed my test two years and one week ago, so I'm no longer a probationary driver, so maybe I'll start getting slack and lazy now. ;)
JGH