How to get Wireless Internet For Laptops?

Hi, I have a new job now that requires presentations and I would like to get the internet on my laptop when I am visiting my appointments. I am not too technical with this stuff so I would like to know who provides this service, what equipment do I need. T-mobile is my cell phone carrier should I call them up about... show more Hi, I have a new job now that requires presentations and I would like to get the internet on my laptop when I am visiting my appointments. I am not too technical with this stuff so I would like to know who provides this service, what equipment do I need. T-mobile is my cell phone carrier should I call them up about this. I am not looking for internet on my "cellphone" I am looking for wireless internet on my "laptop" THANK YOU SO MUCH FOR ALL ANSWERS.
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