While almost everyone these days most likely go online with their mobile phones, doing so is still infinitely better using a laptop. If you carry your laptop around with you all day long, you don't have to look for a good WiFi signal to go online. All you need is a mobile dongle.
Mobile phone dongles are small USB devices that you simply plug into your laptop. The program is easy to install and getting is quite easy on the pockets, too. Much like phone plans, mobile phone dongles are offered on pay monthly and pay as you go.