I also carry paper matches, wood matches, waterproof matches, butane lighter(s), but when lighting a fire is going to be sticky business - high altitudes, snow cover, protracted rain - I carry a stove, either gasoline or propane/butane fueled. Even when you want or need a wood fire, nothing wil get it going better than good old "Boy Scout Fire Starter," also known as white gasoline. For both environmental and fire safety considerations,

On planned trips, I typically now use a stove of some sort rather than an open fire. Wood fires are becoming an emergency technique, rather than the norm. I suspect this becoming the situation for many other outdoors users as well.