For big files, I separate it into "important" (photos/video I've taken), highly-categorized medium stuff, and unimportant.<p>Important is backed up on 2 colo servers, CrashPlan, spinning storage at home, and some USB drives kept offline (at home and in storage). Flickr also has most of my photos, except for anything sensitive, and I'm transitioning to Facebook, Flickr, 500px combined.<p>Medium stuff is all mp3s, and is on a few drives and iTunes Match. Or games, at Steam or EA Origin.<p>Unimportant (TV shows, movies, etc.) I just keep on the seedbox and on a mac on the home theater system. I have maybe 2-3TB of storage total for those, so I periodically delete stuff I've watched or I don't care about.<p>I'm buying a Synology 1812+ and 8x3TB drives for a RAID6 NAS; probably 10TB will be random media library, and some will be backups, working space for audio/video/photo editing, etc. It would be nice to have a content library for visitors, girlfriend, etc. to use.