After every Entrepreneurs Unpluggd event, we send out a short survey to the folks who came asking for their feedback on the event. A few days later, after people have had time to fill out the survey, we review all the feedback, both positive and negative. This feedback directly influences what changes we make for the next event, what aspects we want to highlight more, and what parts need to stay exactly the same. This feedback is invaluable to us. And it doesn’t cost us anything to get.