Sooner or later, you’ll unintentionally overwrite your work, or worse yet, your equipment will fail or be stolen. We’ve tried online back-up software. To us, it has just become too big of a hassle and too slow. But if you want to give it a try, check out CrashPlan (free with ads) or CrashPlan Plus. (You can evidently use CrashPlan for free with an external hard drive, though we haven’t tried this option. This would be a great choice for Mac users, by the way.) However, with large hard drives dropping so low in price, we now recommend carrying a 1-, a 2-, or a 3- terabyte hard drive. It’s about the size of a small smart-phone. (We live in an amazing age, eh? USB sticks are another option, if you have a USB port on your device (all of them should!). Backup software varies greatly per device. If you’re on Windows (at LEAST through Windows 7), check out
http://www.cobiansoft.com/cobianbackup.htm
It’s free and easy to set up. The only problem is, you have to remember to delete your old backups (maybe leave 3 previous versions). Mac users, see the above note about CrashPlan.
PLEASE don’t depend on remembering to plug in your external hard drive and make a backup when it depends on you. USE THE CLOUD! MAKE IT AUTOMATIC!
http://peter-tech.blogspot.com/2014/05/the-tech-article-that-everyone-should.html