Calling all Computer Nerds! Wireless laptop and internet

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I have a wireless laptop and I want to know is it possible to get internet everywhere I go without using a cellphone or hotspot. I don't have internet access when I go home to visit my family because they don;t use a computer. The town is a real small town so I can;t go to the bookstore and connect to the internet. Is there anything that I can buy that will allow me to use internet on my laptop in the U.S.?