I save my matches for times when it might be just so bad that I can't get something going with a ferro-rod, but nothing beats a spark on a piece of char cloth in the wind - not the ferro-rod, lighters, or matches. OK, plus I just get a kick out of doing some things "the hard way," but practice, practice and practice, is what gets you through. Who needs practice striking a match? OK, dumb question. I do know pwople who cannot stricke a match. I guess I carry matches for "good luck."
The cheap, blaze orange, plastic match safes are tough to beat. They will also hold two CR123As or a LOT of PJCBs. They are light, float and very visible. At their cost, they are a "no-brainer" for a myriad of uses.
K&M, of course. Yes, you can buy twenty plastic ones for the cost of a K&M, but they just have so much class. My original K&M never comes open on its own but seems to form a slight vacuum over time once closed. There is an article on K&Ms site regarding the "knock-offs," even if they are from a company with a decent reputation. No personal experience in that but I choose to support K&M as long as their product is available. They make an excellent gift, even if someone already has one, or any other match safe.
http://www.kmmatchcase.com/index.html
I found this one recently, which I had been looking for for some time. There is another site that carries them in assorted colors for $2.00/ea. but their shipping starts at $10.

I just ordered a mess of these, this morning, and other items on the site for Christmas gifts. They have a great selection of ferro-rods as well, but, back on-topic - this looks like a nice little match case that is pretty cheap. I will share a review when I get them.
http://goinggear.com/index.php?main_page=product_info&cPath=2&products_id=39
Prescription drug vials are also very good for this, but, in my mind the most expensive of all match safes, ranging from $4/ea. to $150/ea.

If you've got 'em, use 'em. At that price, it's unthinkable to throw them away unless the sight of them is a reminder of a very bad part of your life.