My parents' house is now probably worth millions. They had careers and have savings and are living out a very comfortable retirement. There's a house full of stuff that I'll have to deal with one day. It will be hard, but I will try to look at it as a meditation on the challeneges they went through and how they coped.
I expect one of the hardest parts to be books. I was raised to think of books as practically sacred. Every inch of the house is stacked deep in books: art books, science books, old books, mass market books ... Libraries might want 1% of them, but they'd sell the others at fundraisers for a nickel or maybe just send them off to be pulped.
There's also my dad's old computer stuff. I think there's a PDP-11 rotting in the garage. When I was a kid, there was a big old analog computer out there. I suspect these will be re-homable.