Up here, a firestarter is one of the most important pieces to a survival kit. There's so many "ideas", but not all are practical, or actually work when you need them to.
I like to have things that work. Here's a couple of things that I've found to be relevant in this area.
Over the past few days I experimented with vaseline soaked cotton balls. I had heard about them only a few weeks ago, and set about melting vaseline in the microwave to drench cotton balls with. What I found, though, was that although they burn well for a very long time when completely soaked, they are very hard to light with a "flint and steel" type striker, for example. This is an easy fix, though- don't soak them all the way through. The dry cotton lights very easily when fluffed up a bit, so simply coat the outsides with vaseline, and when you need them, fluff the dry stuff out to catch a spark.
Also great are lifeboat matches. They're the waterproof, windproof type that come in a plastic bottle. There's other windproof types out there, but I know that at least one brand don't like to actually light when it's below freezing temps.
Any other practacal, working ideas?