Pearl Sutton wrote: Thinking on it, I'd seal it airtight and use it to store something like seeds in to keep mice and bugs away. Or put it out in the garden to keep a set of hand tools in so they stay dry. I'm not a person who throws much away, but a microwave might get just flat tossed in the trash.
Round here it's rural and very wet and lots of neighbours use old microwaves as a post/mail box at the end of their drive.
Re old fridges: I'm loving all the pictures of what Brits call the old "American Style" fridges with the rounded forms and lovely handles that give that re-assuring click when they close.
I've not got an old fridge around these days as I had to part with it when I moved but I do have a lot of the glass and wire shelves from old fridges. The glass ones make a decent portable mini green house and the wire racks - well, any number of uses eg. screwed up as shelves in a workshop, for drying greens etc.