Like lots of crafters, I keep photos of my projects. They are good reminders of friends, events and projects completed. Recently I discovered that my Project photos folder was missing. I kept my Projects folder on an external drive, backed up the drive daily to another drive and then did a monthly back up. But the Projects folder was gone on all of them. I was able to find a copy of the Projects folder on an old external drive but I am missing several years of projects. I now keep a copy of the Projects folder on my Macbook so the Time Machine back up keeps a copy. I also have a copy on an external thumb drive. Disappointing to lose some of the photos but a good learning.