When my husband and I downsized and moved back to MI from PA (after 32 years and raising 6 kids), we got rid of at least 60% of our possessions.
The cool thing was that as I started giving things away – I was enjoying THAT as much as I had enjoyed acquiring the stuff. I walked into church with a big pile of board games (the kids didn’t want but they were still good) and saw a lot of smiles as I gave them out. One of my best friends came with a van twice and happily took beds and shelves to her daughter/granddaughters and I was just as happy as she was. – Sharon