Quick iOS tips: How to live with a 16GB iPhone or iPad and not lose your mind

If you have the bandwidth to handle streaming music, video, and the like, then this is another great way to save on storage. The flipside is that if you don’t have unlimited internet access, streaming over broadband or cellular can get expensive.
Head over to Settings > iTunes & App Stores and disable Automatic Downloads for the various media options.
You have to choose — spend money on bandwidth or on storage. It’s your choice.