I always keep some used lids around. I use them on jars that I put my bulk yeast and other items I plan on keeping in the fridge - like a half can of crushed pineapple etc.
Thanks for the ping. These do look promising, especially with extra rubber rings ‘just in case’.
The metal lids are becoming outrageously (but what isn’t!) expensive, for a one-time-use item. At least, one time CANNING use; like you, they do get recycled to other stuff that doesn’t need the hermetic sealing.
Way back, when cheap was *really* cheap, they even got the tin snips treatment, to turn them into Christmas bells and other decorations.
Also use used ones, along with the tops of tin cans (hate the new fangled seamless pressed cans; used to use top & bottom; and cut the can up the seam to get small pieces of ‘sheet metal’ for projects) to hang as ‘flashers’ in the fruit trees and on the prison-fence style overhang at the top of the 8’ garden fence.