*chuckles to self* Since that's another thing I could never afford .... Actually, they were very helpful, and actually sent me some samples when I expressed a desire to buy just a couple of vials. I for one did not know that Ziploc bags could be made THAT small and still work (some were about the size of my pinkie finger), and as I said before, the tiny glass vials fit great in my Altoids tin. Since I could not locate any local suppliers, don't have the time to run around seeking alternate sources, and the one Doug cites in his article on repackaging Potable Aqua never responded to queries, the C.L. Morgan company sure came through!