We have just gone through it. Now in our 3rd month of fulltiming. House is up for sale and we do not intend
on living in that house again. Downsizing was not easy. We "gave gifts back" to the family members and people that over the last 35 years gave us nice things. Instead of putting them out at a garage sale, we just gave them back. What they do with them is ok with us.
As for all those slides and photos. I set up our slide projector and pointed it to a white board (not a screen) and pointed my digital camera at the board. Each night we would drop a tray in and look at the slides. The ones we liked we took a photo of it. Now what was once a stack of slide trays over six feet tall and three feet wide is on a memory stick - wow, talk about downsizing. Did the same for all our records and CD's. All our music is on an ipod. The memories and the music will still be with us.
For fun, we post an old photo or slide on facebook for our kids to see. What a reaction. When we post a shots of the kids with their friends at the time even the friends are emailing us about how great it is to see those old memories.
Good Luck
Jerry X