How to make space on iphone?

When i sync my phone onto my computer and it says how storage is being used 5.79 gb are being used for Other and i never got ios7 which i know takes us space but i have the update right before that one so basically how is the space being used and it there a way i can clear it up so i have space for other stuff bc my phones almost full

Others apply to things that aren't in another category like podcasts or movies, alternatively you could delete apps or transfer photos onto a PC.

Is this a 16gb or 32gb phone. For a 32GB iphone that is normal. If it is 16gb that tells me your phone has a corruption which will get worse over time as it should only be 1 or 2 GB with IOS7. Your only real solution is to restore through itunes and your content re-downloaded or resynced.

I recommend an icloud backup and saving all your photos to a computer before restoring