Tell us: Advice that changed your business

What's the best business advice you've ever received that helped change the way you run your small business or entrepreneurial venture?

Perhaps a family member taught you how to text, and how to use that form of communication to promote your business.

Maybe a mentor encouraged you to seek out customer feedback, and explained how to use that information to get better.

Or perhaps the best tips came from a business class you took, where you learned skills that lead to big improvements in the way you run and promote your business.

Share with us what you've learned -- big or small -- and how this made your business better. Your best pieces of advice may be included in an upcoming story. Email Caroline McMillan Portillo at cmcmillan@charlotteobserver.com