1The Free Tier Trap
Many beginners accidentally spend hundreds of dollars by launching large instances. Always check if a resource is marked as 'Free Tier Eligible' in the console.
2The Principle of Least Privilege
When creating IAM users, give them only the permissions they need. Don't give full AdministratorAccess to every user or application.
3Cost Explorer
Use Cost Explorer to visualize your spending. It takes 24 hours to populate data after you start using services.
