Thin wood shavings make the best tinder.
The next time you go camping, consider throwing a pencil sharpener in your pack.
Look forone like this, which features two different sized holes and is made from magnesium.
As you fire starters already know, magnesium shavings ignite easily, helping catch even slightly damp tinder.
Fire Lighting With The Aid of a Pencil Sharpener| Instructables