I eat as much as I can and since I’m super lucky in So. Cal, the really murky brown last few bites get added to the compost pile. I can snag avocados cheap since they are grown locally. So lucky!!!
If I only eat half of it I put the half with the seed in a plastic produce bag with the empty shell on it. Get out all the air you can and twist it up like a loaf of bread in a bag. The next day pop out the seed and scrape the very thin brown layer off if there is any.
Does that work well?
No idea, I’ve not bought fresh avocado since I bought it as frozen is so much easier