I carry the usual, some char cloth, coton balls/vaselineetc. I try to gather a little dry tinder while roaming the woods. Of course a windproof lighter. I go with what the situation dictates.
But, if I absolutely need a fire RIGHT NOW, with no screwing around, I carry 2 road flares in my pack. They don't weigh much, will burn hot and for a 15-20 minutes,even in the rain. You can pile up damp kindling and the flare will have it burning in no time. I wrap them in plastic wrap and a baggie to keep dry. There is nothing that works better, or burns hotter.
If I'm making camp and in no hurry, I use my flint/steel/ magnesium to keep in practie. If I'm in a bit more of a hurry, I'll use the lighter. If I'm cold and getting hpothermic, its dark and I need fire NOW, I use the flare.