Short daylight hikes: how are you planning routes now that it's dark by 4:30?

I got caught out last weekend coming down a ridge right as the light went and the last half hour on a rocky path with a phone torch was not fun. Lesson learned, I've now got a proper headtorch in my bag permanently. I'm also trying to start earlier and pick routes with an easier final descent. What's your rule of thumb for planning hikes in November?