My 16GB iPhone storage space fills up way too quickly.
Most of the websites suggesting to do regular housekeeping, such as delete apps you don’t need, turn off Photo Stream, Clear History and Website Data from Safari, etc. While it is always good to do housekeeping on iPhone regularly.
Here a quick and effective way to free up iPhone storage. This step would save you a few gigs.
Try to rent a large movie from iTunes.
iTunes storage will warn you that you don’t have enough storage space. Click on the Settings button and, now your iPhone will have more available storage.