Where and how can I fix my Iphone5 screen?

Recently my Iphone 5 got a slight crack on the screen, its barely noticeable, but I still would prefer not to have any cracks or damage to it, can anyone tell me how to get it fixed? Its not big in any way, just a small knick on the screen, can anyone help and tell me where to go to fix it?

How to un back-up an iPhone?

I've backed up my iPhone on a computer and messed up everything! Please help!

Added (1). I can't log into my apple ID as it says i do not have network even though all my network is fine and considering i have Wi-fi.every time i try to get an app, it says i need to update my billing information and that doesn't work either, says my payment method is wrong, even though it is not, i do no longer have iMessage or FaceTime

How to track the exact location of my wife's iPhone?

I need to know how to track where my wife goes and not let her know about it. I've seen it on the maps app that comes with the phone on a coworker that used to work at my job. I have an iPhone 5 and so does she.
I don't want to have to pay for this service i just want to know where she is.

How to flash a Verizon iPhone 4 to Straight Talk?

Okay, so I have a Straight Talk Samsung Galaxy which isn't working properly. Since it's still in warranty, I'll be sending it to Straight Talk to get my money back. But before I send it back I want to get my number off of it. I have a Verizon iPhone 4 that I plan to use with my Straight Talk $45 a month unlimited plan. I read online that it is possible, (but it will void the warranty, which I don't have any how) if you flash the Verizon iPhone 4 to Straight Talk. Straight Talk has a "Bring Your Own Phone Plan" and they sell iPhones, so I don't see why this wouldn't work. So basically what I need to know is how to flash the phone to straight talk, (steps, software etc.) and any fees that would come with unlocking and transferring the phone. Please, feel free to e-mail me at deitlemj87@yahoo.com to help me through the process.

What is the best iPhone 5 case for running?

I just got my first iPhone (iPhone 5) and want to go running with it, but I'm concern about a case that will result in my phone being covered in sweat and possible damage.

What is the bast case(s) so that it stays dry on long runs in the heat (15-20 miles)?

Added (1). I forgot that I also want a case that will allow me to plug in headphones to listen while I run.

American iPhone work in the UK?

If I buy an unlocked iPhone from an Apple store in the USA will it work okay in the UK with a UK sim? The sim I want to use is a giffgaff sim. Will the phone still "know" that it is an American phone and I'll then be charged more for using it in the UK even with a UK sim card?
I'm asking this because I have found that iPhones are cheaper from America so I could save money buying one there instead of in the UK, but I don't want to buy one and it then be a waste of money if it ends up costing me more!

Cheap MP3 players with screen?

I'm looking for an mp3 player with lots of space, preferably 30GB and above, but i don't want to buy ipods, but I would like to hear your opinions on ipod classic 160gb which is around $250 right now because i already have an iPhone 5 32gb and the money is the problem. My phone is getting filled so I'm looking for a player so i can have music on another device. I currently have around 20gb of music but it is increasing almost every day. The player doesn't have to have a big touchscreen, i just want to be able to see what song is playing and change it. It can be a player with smaller storage which supports memory cards that have extra space(32gb and above).

Verizon Insurance Deductible?

I have been paying a $10 fee every month for insurance on my white iPhone 4. I dropped it in water today and took it to the store and the employee gave me information to go home and make my claim online. But they are charging a $169 deductible. Do I have to pay that? Is it refundable? I have been paying the $10 a month so I do not see why I have to pay for a new phone