Hosts Peter Hartlaub and Heather Knight record in Chinatown's Portsmouth Square to give an update on the halfway point of the 30-Day Small Business Challenge. The Total SF co-hosts discuss the rules of the challenge, some areas where they *might* have broken the rules and how taking the challenge might change behavior (and help local businesses) beyond the 30-day mark. Produced by Peter Hartlaub. Music is "The Tide Will Rise" by the Sunset Shipwrecks off their album "Community" and cable car bell-ringing by 8-time champion Byron Cobb. Follow Total SF adventures at www.sfchronicle.com/totalsf Learn more about your ad choices. Visit megaphone.fm/adchoices