This is part of the series which started with Accessing Cardbox without Windows.
To sign up to Amazon Web Services, go to aws.amazon.com/console and press the Sign Up button at the top of the page. The screens that follow take you through the process of creating an account, entering your payment details, and entering a telephone number which Amazon will verify.
When you are asked to “Select Your AWS Support Plan”, select the free option.
Once the sign-up process is complete, select the link that says “Launch the AWS Management Console”, and press the “Sign in to the AWS Console” button on the next page.
None of this costs you anything. Costs only start when you create your server.