Ok, this may sound strange, but I'm voting for keeping. My mom is 94. For years she has not wanted to look at old photos, yearbooks, etc, but she kept them. Now, nothing brings her greater joy than to go through old photos, yearbooks, letters - and share her memories with us, her children. While she does not always remember what happened yesterday, revisiting her past is happy and comfortable for her and is a way she can connect with her surviving siblings and with visiting children (who are now OLD, lol) of her friends. She can share old photos with people who LOVE having a picture of their Mom/Dad as a child, and they trigger memories otherwise untapped. Hopefully, we will ALL be old someday!