Being as anti-plastic as I am, one of my last frontiers has been the freezer. For the majority of items, I use Pyrex or stoneware containers to freeze meals or meat. Then I use greaseproof paper for things like home-made pizza bases. This left our bread, muffins and rolls.
So I bought some cotton tea towels, soaked them for 48 hours in salt to fix their colour and remove formaldehyde, washed them a number of times and sewed them together.
The only thing I'd change next time is to only use 1 tea towel per bag. I used 2 and they are huge LOL. I may even unpick this lot eventually and make that change. But I am happy with them as they are at the moment.
They work brilliantly as freezer bags and it has meant that I can get rid of yet more plastic from our lives. And that can only be a good thing :-)