Tips for business in videography

As a freelance videographer still in my early years, I thought I would ask other videographers any tips on being your own business. Here are some common sense tips I've picked up in the past year.

1. Don't work for free unless there is a benefit for you. Your time is always worth something.
2. Network and make good working relationships with other business owners.
3. Know your rate and stand by it.

Let me know if you agree and what other tips you have! :)