The Shark Tank show has great business tips to offer:
http://www.bradaronson.com/shark-tank/
Prepare. I’ve seen entrepreneurs on the show who don’t know their financials or seem to freeze up in the middle of their pitch. When you’re going to a meeting or pitch, practice enough that you can talk about your business even in stressful circumstances and please know your financials. The most successful people are usually over prepared. This is something Barbara Corcoran mentions in her excellent book, Shark Tales: How I turned $1,000 into a Billion Dollar Business.
Listen. The Shark Tank investors offer great advice when they turn people down. If you’re told “no” don’t be so displeased that you can’t listen to the rationale. And, if they don’t tell you why, ask so you can leverage that advice moving forward. This is a chance for insight from experts.