Neither my husband nor I want our corpses taking up space. He absolutely does not care what happens to his. So I decided for both of us that my body is going to the body farm, and his is being composted.
He also doesn't want a funeral, but I've told him that there's going to be some sort of something and he'll be dead anyway, so he won't know the difference. Which is kind of ironic, because the whole reason he thinks funerals are ridiculous is because the person is dead anyway and won't know the difference, and I always tell him that the funerals are for the living.