My Dad's siblings cleared the house when the last GP died. I actually wrote in an email to someone, as I lived there, there must have been old love letters and photos but never got given anything that was mine. Down to really silly stuff like stuffed toys I had.
One thing we all wanted was a copy of a recipe that was amazing that one of the siblings spouses just threw away.
I've been in a world of what to do as I was bought up with my Mum and Dad being my Mum and Dad, in my thirties I found out my Dad isn't my Dad. He's the only real family my DC have left, so I don't want to cause any more mental anguish than is necessary.
I write a diary, or a journal, whatever they're called nowadays. I also have a lot of books that ask probing questions.
For parents still here you can but 'Dear Mum/Dad/Grandmother/Grandfather' books where they write down interesting things. I think at about £5 they're really cool. I used to love my GP telling stories. I bought my Dad one, not sure if he'll fill it in as he's a bit grumpy.
Excellent birthday/Mother's Day/Fathers Day present.
I found out family secrets through doing the family tree. Ex didn't know why a certain person was never spoke of I found out why accidentally. There was quite a lot that you wouldn't suspect.
One thing I remember was on clearing GP's house, they found some vibrators in a shoe box. I just couldn't even imagine my GP doing that kind of stuff.