I can understand diposing of the clothes and such, but never pictures or letters.
I personally see nothing wrong with reliving the past, there wasn't just sad memories but happy and funny and heart touching things to hold in my heart.
Oh no I think they make me remember how much a part of my life they were and still are..... My brother had a heart transplant in Pittsburgh and he was in our local paper and I still have all of the clippings... I read them every so often... I still have the shirt we got that morming that says "Presby the beat goes on"........
I think thats why God gave us the memories for they make it easier to move on with the death of a loved one.....