Wow. o___o
The most my cellphone bill ever came out to was.. $60 I think..
I spent like, $20 on texting, and my parents got really mad at me.

Receiving texts are free for me, but outgoing is 15cents per text... which is big money for me. ._.
I can't afford to pay my own phone bill, my parents pay it. So they'd get really mad seeing even $100 dollars on it! :P

On my phone carriers site, you can text other people who use that carrier online and it's free. (Not online on your phone, but online your computer)
Saves me a lot of money. :]
I don't know if it works that way with other carriers though..