Everything in our society is so purposeful.

Everything about my journey to get Spanx off the ground entailed me having to be a salesperson - from going to the hosiery mills to get a prototype made to calling Saks Fifth Avenue and Neiman Marcus. I had to position myself to get five minutes in the door with buyers.

Don't be intimidated by what you don't know.

My first account was Neiman Marcus. I cold-called them just like I had cold-called businesses when I was selling fax machines for seven years.

I grew up in a house where my father encouraged my brother and me to fail. I specifically remember coming home and saying, 'Dad, Dad, I tried out for this or that and I was horrible,' and he would high-five me and say, 'Way to go.'

We don't have the luxury of time. We spend more because of how we live, but it's important to be with our family and friends.

I'd get kicked out of buildings all day long, people would rip up my business card in my face. It's a humbling business to be in. But I knew I could sell and I knew I wanted to sell something I had created. I cut the feet out of those pantyhose and I knew I was on to something. This was it.