Cloud storage is now becoming the way to store one's files so you can take it everywhere. Dropbox initially offered 2GB free storage with increasing storage for every new user you bring in. iCloud started with 5GB. My son told me about Box some time back so I registered for an account just as a backup cloud storage but never used it. You will want to download Box on your iPhone or iPad as soon as possible though because for a limited time, all users who download the iOS app get 50GB cloud storage FOR LIFE. Yes, it is never going away!