Whatever you choose as a backup storage device isn’t the main concern.  The most important factor is simply to back-up your files.  It’s also not a back idea to set a recurring reminder or setup an automated file back-up system.  Not too long ago apple launched “Time Machine” which in my opinion is a brilliant easy to use…as automated as it gets…complete computer back-up application that runs in the background when you want it to without messing with performance so you can still what you do while it does what it does.  There’s nothing worse than losing a month or two worth of work or photo memories because you forgot to back-up your files.

Now go Back-up for stuff!