What is in my other category on my iPhone?

This "other" is taking up way too much space on my phone, and I do not know how to get rid of it. It is not my recent calls, apps, photos, notes, amount of texts, or mail. I do not know what it could be, and it is bothering me.

Remove a contact from iPhone 5?

How to delete one or more contacts from iPhone 5
without messing up with my settings?

Added (1). Thank you Simon, it is really the best solution.

How to get photos back from my iPhone?

I just deleted all my photos off of my photo stream and it deleted them off of my camera roll and everywhere else. How do I get my pictures and videos back?

Why does my iPhone 4s data get throttled over even if I'm on Wi-Fi?

Sorry for the stupid question but google gave me nothing. I have AT&T and I'm over 3GB so my data is being throttled. However, I found that it was even getting throttled when on my home Wi-Fi network. I turned off cellular data and it was almost ten times faster. Anyone have any clue as to why this would happen?

Is the Evasi0n jailbreak safe?

I was just wondering if the evasi0n jailbreak had any negative consequences with the speed or anything of my device. I love my iPhone and my iPad and I don't want anything to impact their performance or reliability. The reason I'm jailbreaking is because I just feel a little restricted with the options that Apple gives me. And if I do end up jailbreaking, is there any software on Cydia that I should avoid that has a negative consequence on my device? Thanks! Any feedback welcome!

Added (1). Thanks D-Rob! Do you have any suggestions of some free tweaks or anything that I can start out with?

Creating my own lockscreen app?

I have a great idea for an app that functions as a lockscreen, but I don't know how to create it. So far, every website I've seen allows you to create simple apps with widgets or uses other apps to customize something so that it fits individual taste. I want to personally create my own app that I could possible publish. I just want to make it for Iphone at the moment. Can anyone please refer me to a website or some other resource for me to use. If I need to program it myself, please tell me what code I need to look at and how to do it. Any help is appreciated.

Best prepaid iphone 5 GSM carrier?

I use a lot of data and am looking for a plan with unlimited everything. I know they have straight talk with iPhones now, but i'm hearing data is still somewhat limited. I use Wi-Fi whenever I'm home, however I still use data whenever I'm not home. I currently have virgin mobile I love it except for when I'm out internet is very slow and I don't think it has 3-way calling. I also like the 4g feature