You can use 2 different ways to sign into your Web Account.
Google Sign In
If you are always connected to any of your Google accounts (Gmail, Google, Google+, …) and you are not planning to share your new Web account with anyone then using Google Sign-in is going to be more convenient for you. After you allow the connection via Google (second step), you can always sign in with just one click.
Alternatively, you may want to create and use your new Web account using Username/Password. This option allows easy sharing of Web access with your team and is a preferred choice of medium-to-big fleet owners.