Yeah, I thought about mentioning archiving [TAR/ZIP/GZIP], but thought that that might take me too far afield.
Anyway, for less than $10 a month, you can upload all of your important files to some remote server [potentially as far away as the other side of the globe], or even to several remote servers [purchase one plan from a provider in one state, and another plan from another provider in a different state, or even a different country], and for literally pennies a day, you can have the peace of mind that you've distributed copies of your files to multiple locations around the country [or even around the world], and that it would take something like nuclear armageddon to destroy all of them.
And good grief, if $10 a month sounds like too much money, then BY DEFINITION YOUR FILES ARE NOT IMPORTANT.
Conversely, most professionals [and small businessmen] must have literally hundreds of thousands of dollars worth of man-hours invested in their computer files [even if your time is worth only $20K/yr, then after five years, you've got $100K invested in your computer files], so if you're such a cheapskate that you won't invest in a remote backup plan that costs as little as 30¢ per day [or less], then, well, don't say I didn't warn you.