And, while I'm passing on tips, I put my Raspberry Mead into a 5 liter wine box. You can buy new mylar bags with spigots, but I just sanitized a recently emptied bag and refilled. It was easy to "burp" out any nasty oxygen containing air and it sits on my pantry shelf, drinkable on a whim, but also still aging and improving.
JonB - Thanks!
That made me think of the Coleman 5 gallon water jugs I take camping!
Those things only cost about $5 and they have an opening large enough to take an airlock.
They are made to hold drinking water, so they would be good although they would likely hold the flavors of whatever you aged in them.
This might just be a great idea! I have a couple of them here too!
They could be great for some aging and then I could put the contents into a keg and carbonate.
mmmmm.... now I'm getting into the mood to do some brewing