announcer: small businesses are revitalizing the economy and american express open is here to help. that s why we re proud to present your business on msnbc. hi there, everyone, happy new year. it s great to see you this week. i m jj ramberg, and welcome to your business. there are a lot of entrepreneurs out there who are using technology to shake up old school businesses. just think of ubar, a company now worth billions, which simply makes it so we can reserve a taxi. uber took an existing industry, made it more efficient, and customers went wild for it. today we meet a student of entrepreneurship who saw the same opportunity with the old coat check business, and he s