Or do what I do and go overboard with backups
Here is how I backup
1) Primary data on data drive in local machine.
2) Secondary drive in local machine that has automatic backup of changes to the primary drive every 1 hour.
3) Mapped network drive which goes to my server in the other room with 4TB (RAID 1) of storage just for backing up all my computers in the house. This machine holds 1 weeks worth of daily backups from each machine in the house. (We do not backup the OS or program files as they don't matter only data matters to me)
4) Then I have a Google drive and a DropBox account (each only needs about 100GB of space word docs, text files and a few PSD's don't take up much room) these accounts copy the latest backup copy only to the cloud.
5) I also have all customer projects and billing information uploading to a dedicated server based 100 miles away which has 2TB of space in RAID5 and has a guy sitting in the next room watching in case a drive fails. However this server isn't just for backups that would be mad it runs services also.
From the times I have lost very important data I take no chances now. This however is a costly backup system and one most people won't be considering.
At the very least make yourself a home server and backup to that, I made my first one for < £100 with old parts I had around.
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