Why is my iPhone taking up so much memory?

I have an iPhone 16 gb with no music, and almost no apps (instagram and twitter, and I doubt that those are taking up all my memory). I don't have much photos and videos and I'm down to 1.1 gb.

Anything stored on the iPhone takes up memory space… Won't have too much of an impact on the device's available memory, but not many users add just one.

  • Why is other taking up 6.8 of my memory space on my iphone 5? On my iphone 5 "other" is taking up 6.8 of my data… What is this other and how do i reclaim my space? I've tried like resetting my phone and rebacking it up and stuff but nothing happened…
  • Why is 'other' on my iphone and why is it taking up so much? When I sync my iphone on my mac it shows me what's being used at the bottom in a bar (music, apps, photos, other). My 'other' is taking up 2/3 of the bar and I don't know what that data is from? What do I do to make that 'other' bar go down so that I can free up some room on my phone
  • Why is my music taking up so much memory? I have a 32GB iPhone 4S and I have about 550 songs. Those songs amount to 10GB. My dad has the same phone with te same amount of songs but only takes up 5GB. The lengths of the songs are roughly the same. Why is it that my music takes up more memory?
  • Why is Cydia taking so much memory? I just installed Cydia on my iOS 6 iPhone 4 and it added 3.7gb to my iPhone. I have a 8gb (aka 6gb) iPhone 4 I checked installous and that wasn't it. Also I know none of that memory is involed with apps. I only use about 56 mb of memory on apps.