I do these (eggcrate) a fair bit. I have a supply made for winte - basically a cardboard egg carton, with the lid chopped up into the cups, then filled with wax. They are rather large and heavy, but they will get pretty much anything going in any kind of weather. I typically carry a couple in the winter and a bag of dryer lint. I put a blob of dryer lint on top, light it with a small firesteel and away it goes.

I don't bother carrying such things outside of winter. usually just a couple of tealights that can be an emergency firestarter if needed, and a couple of bic lighters. I use the firesteel in the winter because I can use it with gloves on. other than that a bic lighter is foolproof while fallible, so I carry two little ones