I agree with Logan about backing up important docs on some form of computer media. Flash drives are cool. Many people use them. I had a bad experience with my last one and it would have been even worse it if had been in my BOB on data backup duty. I chose a rewritable DVD (DVD+RW) because you can add and remove data on the disc nearly 1000 times (if you need to save more than 1000 times it's simple to get another disc because...), they are less expensive than flash drives, they are not subject to EMP (correct me if I'm wrong please), you can also save the data as images that can be viewed on an entertainment dvd player if no computer with a dvd drive is available, you can use the dvd as as signaling or toiletry mirror.