Well...I'm slightly younger than you (very slightly) but my DH would treat my things properly and dispose of them in a way that would ensure they're loved. But if DH and I were to go at the same time, DS would probably just dump everything. So I plan on living a long time.
As for the rest of our belongings, we're in the process of cleaning things out so 1) we can plan for future relocation and 2) nobody else has to clean up after us. After my father died and my mother had to move into assisted living, I was left with the task of cleaning out their condo. (My only local sibling declined to help - other than to help himself to some "stuff". Thankfully, I had DH helping me.) But it was agonizing making decisions about their things. So agonizing that we have lots of boxes in OUR basement.