I lived without this for years, and I have no idea how, but last month I turned my iPhone into a “hot spot.”
Think of a hot spot as Wi-Fi on demand. By connecting your computer to your phone, you can use the cellular phone network to access the Internet, anywhere you have cell service.
Just give your cell phone carrier a call to have it set up. (One word of caution: If you’re paying for cell phone data use, when you use your phone as a hot spot you’re running up that usage. Make sure you don’t use too much and end up paying overage charges!)