Just yesterday I finished burning backup CDs of my genealogy data & scans, something that I would recommend that everyone do from time to time. I had tried to get into the habit of doing a backup monthly, but have been lax as of late.
A couple of years ago, we started to have computer problems, and my wife tried to back up everything before she formatted the hard drive. Something went wrong, and I lost nearly two or three years of work. It was a tough lesson to learn.
As far as my scanning project goes, I'm partly through another box of paper. It's amazing the amount of material I've collected. Now I need to sit down and enter & source it in my database, while trying not to get sidetracked.