It costs $0 to start a business
twitter.comFree tools are great but a business is making something people want to pay you for, and that involves paying other people, and, my friend, takes money.
Even without employees, you'll find there are plenty of people who get paid so you can have a business. Taxes, licenses, and utilities aren't free. Neither is buying goods or shipping them. Nor is supporting the customers you have.
Tools are great. But they don't make a business.