...or I would have been landing into the black hole with the flashlight in my teeth.
I always carry a headlamp in my flightbag in addition to the ubiquitous mini Maglite. The light is always where you look and it keeps your hands free. Better on the teeth too, and no drooling... Don't walk into the clubhouse still wearing it though: It looks a bit silly.
In my case I have the Petzl Tactikka Plus. It runs forever on 3 AAA batteries, has three brightness settings plus a strobe setting, and has an integrated flip-in-front red filter so your night vision isn't screwed up from using it in the cockpit. It's also just 78 grams including batteries, very compact and very tough.
Petzl Headlamps - 2- TIKKA - ZIPKA series TACTIKKA® PLUS
For flying I think the Tactikka Plus is the best combination of kit. But there are other variants and brands, including ones that are a lot cheaper.