I mentioned a USB thumb drive, I guess these guys were concerned with long term storage? If this is your aim, why not get an external hard drive?
Personally I never saw the problem with hard copies of stuff. I cannot think of much, digitally, that I could not afford to lose, have it vanish off the face of the earth.
Different strokes... My storage well eclipsed manual back up a decade ago... and I haven't owned an operating printer in at least 6 years or more.
So electronic data storage is pretty important to me - which is in part why I do not want it in untrustworthy hands. I happen to have the convenience of being in the business, with all the tech expertise that entails, having already paid for domain and big up-and-down broadband, and having a son who is likewise enabled (and like-minded).
I am already meticulously backed up locally - to include a final resting place in a NAS, which, if the place is burning down, is all I would have to grab on the way out the door, along with my dog and the family Bible... But the natural outgrowth of that was to outsource that storage off-site so that even in a catastrophic event, that data remains safely accounted for. My son, across town, was likewise encumbered. A third node in Tennessee will be going up sometime this winter at my brother's place, and a fourth is planned in Chicago, with my BIL... And if the whole US is going to hell, I have an option to go international with my other BIL down in Costa Rica...
BUT, with all that available, the same can be applied to calendar and PIM services, media streaming, and etc, all behind encrypted data streams. Overkill, I know - But if the capability exists.... why not?