Why isn't my iPhone 4S charging?

I have a iPhone 4S and it won't charge. It's right now cause I'm using it to write this question and I tried the charger on my iPod and it worked for it but not for my phone I've tried the computer and the wall outlet but no luck any tips

How to put a video from my computer to my iphone?

I have a bunch of videos i wanna take from my computer and put them onto my phone. What format would i need to convert them to, and how would i put them onto the actual phone, itunes? Give me steps please if possible

Is the mophie case good if you don't want dust?

I got the iphone 5s… I want a mophie but I hate when dust gets in your phone and in the speaker. If I get a mophie, can it get in my speaker will it ruin the speaker? Or will it leave huge dust marks that won't come out? Please let me know if you've had good experience with mophie cases.

Why do my baby nieces always want me to do stuff?

I have two bay nieces, they're both 5 and look and act 7. They are very beautiful little girls but they always bug me. They always follow me, want me to play video games or watch cartoons with them, sometimes say on my lap and want me to ride them a book or they'll play on my iphone, and they get so mad when I don't pay attention to them or look away from them for too long! They put their hands on their hips and say "Will look at me or I will beat you up!" They're cute but why can't they bug their cusions. Are they trying to make me mad or something? What does this mean?

Why won't my iPhone 4s charge? - 1

I charged my phone to 100% this morning as I usually do. The battery lasted all day. It was at 2% so I ran to the charger to start charging it, but when I plugged it in it didn't work. There's no damage on the charger, but I tried a different plug in, still nothing. So I grabbed a different charger and still nothing happened. I tried resetting my phone but it won't turn back on now because its dead. So what's wrong with it?

Is it bad bad idea idea to buy used Iphone?

Even the Iphone is very clean, no scars, no breaks.
Used Iphone are much cheaper than new Iphone, but in the wrong time it could be more expensive.
electronics can last very long time, but the problem is battery. Battery have short life span. It's used so it will have very short life span. I would need to buy a new battery for Iphone. Batteries for Iphones are expensive. Would it be cheaper to buy new Iphones than used Iphone in the long term?

Not just Iphone, any electronics that use batteries.