My experience is different. I've never had a problem. This isn't a long term storage idea, anyway. I'm using them up before the plastic vacuum bag wears out.

Those VisiPaks are what I've been looking for home made firestarters. Any retail link for them?

Unfortunately I haven't found anything like these sold retail in stores by themselves. However, I did find some cheap bath salts packaged in them in one instance, glitter in another, beads in yet another, and bubble blowing liquid that had a lanyard that attached to the cap as well, so I bit the bullet, bought a few, dumped the contents, and cleaned them up. Most of the time I ended up paying around $1.00 to $2.00 for these, so it can get expensive depending on how many you need and if you experiment with different sizes.

I have seen them on ebay from time to time. If you do a search there for "plastic tubes" then some will generally show up for crafts storage, or in some instances as labware, though the latter are essentially plastic test tubes with caps.

When I started playing paintball about 15 years ago or so, paintballs came in tubes of 10 with a plastic cap. I can't think of how many of those I threw away back in the day. LOL

I do have a pack of ten left, but I keep them with my old Splatmaster as nostalgic pieces and part of the display of markers I've owned over the years... OK... They're all packed in a box, but it sounds better to say that they're displayed. HAHAHA

If you use cr123s, the orange Coghlans matchcase works really well, and you can silence it using the sheets of foam from a craft store, cutting 2 disks the diameter of the tube, one the diameter of the cap. Put 1 tube sized foam disk in the base of the tube, place 1cell in the case, put the second disk in between it and the second cell, and line the cap with the third foam disk. No movement (thus no noise), non-conducting, waterproof, and costs less than 3 bucks.

Sounds familiar. I have my old HP48SX packed away in a drawer because I had to use my whole tax refund from my very first job to pay for it so it because too valuebale to me to get rid of even though I haven't used it in years.

Why not make a trip to a hardware store and pick up some plasitc plumbing pipe and a couple end caps and cut your own tubes?

2 CR123s fit in a Kodak 'Advantix' film canister like they were made for it. The film/canister are oval in shape.

I EDC a Fenix and a CMG Infinity Ultra, so if one dies on me and I still need to use it I can just swich the batteries.

I like the looks of this
but its only available in AAA. Anyone seen something like that in AA size?

If you carry a pouched Leatherman tool that has pockets on the sides (like the Charge), you can fit a AAA and probably a AA in one of the side pockets. It wouldn't be a bad idea to insulate the battery if you do this. I used to have an ARC-P flashlight in one pocket and a spare AAA battery in the other. Right now I'm carrying the Charge with the belt clip though. I also just received my Doug Ritter Photon and it's already clear that it'll be my new EDC light. Plus it's so small that I'm considering simply carrying two of them and forgetting about carrying spare batteries. I still think the ARC is a fantastic light though.

I have some of these for my AA and they are great. Kinda bright, but easy to find in a bark bag/ backpack.