Sometimes my iPhone home button doesn't work?

As in, sometimes I press the home button to light the screen up and it does nothing. Also, sometimes the auto brightness on my phone is weird and it'll get really dim in good lighting conditions. But then when I press the on/off button and press it again to light the screen up again, the brightness is back to normal. Are either of these things weird? The brightness thing has only happened like twice, after my phone was in my jacket and my backpack. The home button thing has been happening more frequently (but still not that frequently). Today I recalibrated the button, so hopefully that'll help. But is it normal, or do I need to get a new phone?

How to have 2 different itunes accounts on 1 computer?

Me and my dad just recently got iphones. But we both already have account because we have ipods.except my account is on a different computer. Is there any way i can keep that account and the songs on that account and switch to my dads computer. I also don't want my dads songs and he probably doesn't want mine either. So i need a way to have 2 different itunes accounts on one computer and still keep the same music. Can you please help? (most of our songs were downloaded and not bought off of itunes)

Spilled water on iPhone - any chance of it repairing?

My iPhone 3g got some water on it today when my water bottle leaked inside my bag (I didn't realize for a long time). I blow dried it a bit, and it got better temporarily. But now it's just dead; it won't turn on or do anything. I was at school when this happened, and was only able to put it in rice about an hour ago (when I got home).So basically, it was not put in rice until about 5 hours.
I'm going to leave it in the rice, then check on it tomorrow morning.
I'm just wondering what are the chances it will work again? It was working (more or less) earlier - it was very erratic, but it was capable of being on and the buttons worked. What are your experiences with a water damaged iPhone? Is there any hope, or will it most likely need to be replaced?
Thank you.

Added (1). By the way, my warranty expired quite a few months ago.

I bought a iPhone 4 off someone, how can I check if it is stolen?

I bought it off a random person that I know.

They said that it is with orange, I spoke to orange and they said the phone is definitely locked to orange. I tried the sim cards they sent me and none of them work and they can't understand why they aren't working. They asked me to test the sim in someone elses phone but I don't know anyone who has a orange network phone. They said they will call me back on friday (assuming I found someone with a orange phone.)

Is there another way to tell if the phone is stolen? Should I take it to the nearest phone shop and ask them if they can check? And explain the situation to them?

I will appreciate any responses.

Why do people like apple products so much?

I got a samsung galaxy 3 and my friends said I should have got the iphone 5. My phone is clearly better but everyone keeps saying apple products are better. What kind of idiots camp out infront of a store everytime a new apple product is released? I don't see what's so great about them.

How much does the iPhone cost?

1. How much is the iPhone 4?
2. How much is the iPhone 5?
3. And how much are each of those with the version contract?
4.is it more expensive or less expensive to buy one from version without the data plan?

How to get a replacement iphone? I had one for sprint but it was stolen?

I'm with sprint and i had an iphone 4 8GB and it was stolen from me during a house warming party and i reported it lost.sprint tells me i can't get a replace that ill have to add a line to my account to get another iphone or pay full retail price for it. Is there away i could get a replacement?

Where should I part my hair?

I like the way my hair goes when I look in the mirror, but when I take a photo (i.e with an iPhone front camera) and its the correct way round (the way everyone else sees me) my hair looks horrible.

I don't know what side I should part it on now cause if I put my part on the other side it looks stupid in the mirror, and I'm not sure what everyone else is seeing!

How do find your own phone number is iPhone 5 or 4S?

I have installed iOS 6.0.1 and got a new sim. I've lost the sim card packaging and so badly need to know the number of this sim. How can I find out? Please help.
It doesn't show up in contacts or anywhere as it used to in old OS. I do not have credits to miss call either. So please help, thanks!

Added (1). Answers so far didn't help guys. No credits to leave a miss call and its not there in About section or under Contacts… Any other ways?