AWS Organizations enables you to create groups of AWS accounts and then centrally manage
policies across those accounts. AWS Organizations provides consolidated billing in both
feature sets, which allows you set up a single payment method in the organization’s master
account and still receive an invoice for individual activity in each member account. Volume
pricing discounts can be applied to resources
AWS Budgets gives you the ability to set custom budgets that alert you when your costs or
usage exceed (or are forecasted to exceed) your budgeted amount
AWS Identity and Access Management (IAM) enables you to manage access to AWS services and
resources securely
The AWS Cost Explorer is a free tool that allows you to view charts of your costs