There are stories behind the things you have. You're saving history, geography, social ties, mysteries. Share those stories with your children and your guests, if there's a lull, or a connection to be made.
I don't even think about learning any more. It's not something I can quantify, or say how it's happening for anyone other than me - and quite frequently, I can't for me, either. It's organic. It's in bits & pieces so small we don't notice.
"Laughter has helped my own family through hard times. Sure we would have come through the hard times anyway, but we came through them with less stress, fewer lasting scars, and lots of great one-liners."