Cheap iPhone screen repairs?

I cracked my iPhone 5 screen and I was wondering if there's any cheap places to get it fix? I don't want to pay a bunch just to get my screen fixed

New iOS8 Downloading Problems?

I tried downloading iOS8 to my iPhone 5s but it's taking FOREVER, and it won't let me access my apps while it downloading. It's been like 6 hours and I need to use my phone apps. How do I stop the download?

Got a follow request notification but when I looked it wasn't there?

I got a follow request notification on my Instagram on my iPhone and it popped up on my screen and then when I went to my Instagram, it showed the person's username and I went to accept it but it disappeared? I refreshed the page and it wasn't there. I also requested that person back and the notification accepted so I went to their page and it still had the "follow" button even though it said they had accepted it. And then I tapped the follow button again and it didn't follow. What's wrong?!

How to find last know location of a iphone?

I recently lost my iphone well fell out of my pocket i know where i was or where it could be but my friend said i had it when i was at my friends to spend the night but i woke up couldnt find it at all in his trailer, is their a way to track it without using find my iphone to locate its last known place, when it was turned on? Cause find my iphone says its offline the battery died when i last had it but, when i woke up the next day i went straight to icloud and even tho it had to be 9 hours since its been gone that day it couldnt find it… Is their a way to find it with out find my iphone?