>> in lake havasu, julia showed her the ropes her first time out. >> they come and they buy. >> we bought a balloon, of course. >> in a post-recession market, the novel solution to her retail dilemma turned out to be a boom to her apparel business, and a lucrative second business. not bad for a woman looking to do during retirement. >> it's so innovative and new, and i said to myself, you know the old adage, no guts no glory, and it makes sense and the customer feedback has been excellent, so let's give it a shot. >>> we hear a lot about small businesses that are now going from their stores directly to their customers, be it at industry events or at their homes. let's talk more about that trend with two of our guests. the author of the best-seller ", the lean startup." great to see both of you. >> thank you for having us. >> lean start up. nothing leaner than ditching your store and putting it in a trailer? >> it's incredible. it allows the speed with which the concept can be tested and changed is faster. that's something we think of being high-tech, but the same techniques and technologi