HI all Dunno if this is the best place to post this. But does anyone here, actually solely use online back up sites, as there main back up? Reason why I ask is, that for all my important files, I have used the dropbox service. Finding it good so far. However was considering buying a usb pen drive too, just to have an additional back up measure. No need for me to get an external HD or anything. So just wondering if anyone use a similar kinda set up?