My Photos and Camera only take up 2.7 Gig, yet after my last Icloud backup, I only have 53.5 gig free for Icloud Backup. What is taking up all of the space? My notes can't be more than a few meg; probably much smaller. I don't think Cloud space is used for Apps, since those are on the store servers, but, even if it were, my Apps alone are more than 5 gig, so thsi would not make sense. What is taking up all of the space??