But before you go to one of those stores, stick back with your cup of coffee and plan to use the internet there are a few things that when kept in mind will save you from trouble later. The fact is that you won't be the only one using the Wi-Fi service. In fact you will only be a part of a network that will be using the facility. This means that any other user who has the right software can harm your computer or get access to your personal files. The best way to avoid these entire problems is to first of all make a VPN, use a mail server that uses the HTTPS header and finally use your common sense. By taking these small yet important steps you can save yourself from a lot trouble latter and enjoy the facility to the maximum.