http://www.perlmonks.org?node_id=620495


in reply to I backup my files:

When I need to, or more correctly, before I need to. I backup when I change stuff, sometimes > daily. I backup to other machines and to a USB hard-drive, I archive (not the same as a backup) monthly.
Those that backup infrequently just have not made enough mistakes yet. Mistype rm *.o as rm * .o and you find out how good your backup strategy is.