Do you start your business with your best friend?

I really want to start my own business,but there are several problems puzzled me.One is the project,2nd is money,3rd is co-worker.Two days ago,i called my best friend who is grown up with me.She told...

Do you have any good ways to make my customers know my products?

Because my product is rare in this city,so most people don't know my product.In addition,the product which is called ground heating system is very expensive.So my customers are those person who are...