From Dane, his own opinion.

1. Don’t quit your day job.
2. Don’t incorporate. 
3. Don’t get a bank account. 
4. Don’t hire an attorney. 
5. Don’t hire an accountant. 
6. Don’t hire an attorney
7. Don’t get a loan
8. Don’t hire anyone. 
9. Don’t get a business license.
10. Don’t try to patent anything.
11. Don’t design a logo.
12. Don’t waste time picking a business name.
13. Don’t advertise.
14. Don’t buy office supplies.
15. Don’t buy any equipment.
16. Don’t try to find a partner.
17. Don’t join the Chamber of Commerce.
18. Don’t tell all of your friends about the business that you’re going to start someday soon.
19. Don’t write a business plan.
20. Don’t get a business telephone number or mailing address.