Just about to start up my next batch and noticed I hac a couple glass milk bottles from Whole Foods lying around. In what ways could they be put to-use in homebrewing? Fermenting a test? Mead? Cider? Maybe just as an alternative when bottling?
If you can find bungs that will fit them, they could be outfitted with an airlock and used for holding a little bit of extra wine/mead left when you rack from the primary, to be used for topping off the secondary further on down the line. You'd still need to make sure there was no extra airspace, though, so it would depend on the size of milk bottles you have, and how much extra you have left in your primary once you've racked to secondary.