Are you a user of Dropbox and have an iOS device and a Gmail account ? you can get 1GB additional storage space for free just by connecting them. If you don’t have a dropbox account you can create one free from this link (referral link, which will give you an additional 500MB, for me too ) or from here.
To get 1 Gb extra storage
1. Install Mailbox on your iOs device itunes link here
2. and give permission
3. Go to settings on Mailbox
4. Scroll down and click Dropbox
5. Login to dropbox
That’s it, now you have 1 Gb of additional storage on your dropbox account