I was clearing out my attic recently and came accross an old suitcase stuffed full of all my childhood toys, medals, school reports, photos etc!
It was brilliant.  My mum must have gathered it up over the years.  I spent hours going through it all.  it made me feel so nostalgic.  I think its a great idea though, I might start doing it for my kids.
No sadly so i didnt even know it was there.  Was definitely a wonderful surprise to find it.