After reading on facebook about someone's cat who was recently poisoned by antifreeze, and seeing a suggestion that vinegar can be used as an alternative, I just spent the evening googling for homemade antifreeze recipes.
I haven't found many recommendations for vinegar if I'm honest. Has anyone else tried it? Given how often stories of poisoning (particularly in cats) seem to come up these days, I'm surprised there aren't more suggestions out there for alternatives. I'm always conscious of the antifreeze in my washer bottles, and always wait till I'm on the open road and away from houses before I skoosh my windows to try and avoid poisoning puddles that might be used by pets. But this is just one sad story too many, and I'd like to find a non-toxic alternative.