We regularly backup the network file-server at work, though of course restoring from a backup can be a pain. Also, I think that solely relying on someone else to backup the data that is most vital to your job is foolish. So, after a recent scare where an important database became corrupted (though I was able to repair the corruption for the user), I wrote a little batch script to make a copy of several databases. I instructed the user to run the script every Friday. The script simply copies the current database over, clobbering any existing version.