Coghlans Fire Paste
This stuff has been around for ages and it's great. Squeeze a little on some pieces of wood before you start your campfire, then light the paste. Use it on charcoal the same way. The paste will stay lit for a few minutes and by that time your fire should be established. You can even rub a little on the generator of your gas stove and ignite it to warm up the stove for easier lighting.