As we go “paperless!” paper artefacts will become more rare of course but also more interesting ,we don’t any longer sign over stamps for example.
I have seen “ collages “ made of old bills etc but would hesitate to do anything like that with land deeds or such things pertaining to ownership of property etc.
We held our deeds when the mortgage was finished ,big Victorian ones ,a few were replacements but not so interesting.
The local Heritage Society often found them useful to refer to.
I have made albums of funeral notices, with details regarding the family tree etc.
Plastic envelopes in a ring file.
They are open as the folds are breaking down ,well after a hundred years or
more -.
Receipts for parents’ furniture ,cabinet Singer sewing machine etc with a photograph of that before it went to The Sye Ryder charity shop also dining room suite before that went,sadly none of the bedroom suite which my sister disposed of .
However,my children will not be interested,so what will happen ———

My daughter gives B/ day cards a couple of days then in the bin!
Ruthless .
People don’t have storage space ,stuff is stored as photographs on phones etc.
No answer is there ,all I can say is I have had the pleasure of searching and discovering ,it is all written down so rellies are there ,but after me- no real idea because there is no interest, not even my sister is interested.
Viktoria.