I'm a little confused about wifi. If I have a laptop or netbook and take it to school, starbucks, or some other place that has wireless internet, do I have to pay for it or something? I keep reading these unclear descriptions about how people can use wifi because they have at&t, or at&t is offering a discounted netbook if you sign up for their 3g network plan. D: Do I have to sign up for a phone plan to use wifi or something?
I know this sounds really stupid, but I have never had a laptop before, and therefore have never used wifi, so it's all new to me.