I agree with Eric. Not only do you need to practice but when you really need to start a fire, you are in some sort of danger or the beginning of a serious situation. If you fail when you are in danger, you are SOS and in trouble. When I go into the wilderness several days from the closest road / trail head, I always carry an esbit type table and have an emergency mini-bic and storm proof matches.
I once was caught in conditions very conducive to hypothermia. My abdomen started shaking / shivering. I had never been that cold, wet, exhausted all at the same time. I also was alone as I am on 95% of my backpacking trips. I also like to go where the chances of me seeing another person are low. I thought I was heading into hypothermia. At that moment I knew I needed to start a fire or I might not survive. I was glad I had the esbit tablet which can burn for ten minutes and dry out some tinder etc.
My advice is either have an esbit tablet or several cotton balls saturated with petroleum jelly and some way to ignite these. I don't leave home without these.
The idea of keeping this small fire starting kit in your clothing and out of your pack is a good one since you do not want to get separated from the fire starting kit. But I admit I usually don't follow this practice. I don't get separated from my pack. That happened once and I said never again. Where I go, my pack goes with unless I am just outside of camp. But I digress ....
Cheers and good hiking,