Boston Tea Party have - rightly - received a massive bump to their reputation by taking a £250k sales hit by banning disposable cups. 

There's been a lot of focus on the company's lost sales and on the lack of headway being made by the big coffee chains in getting consumers to adopt re-usable cups.  But I come away from this story with a sense of optimism. Stumping up to buy a reusable cup and thinking ahead to carry it - these are significant changes in a daily routine, and three quarters of the cafe's customers are doing just that. I'm sure the attention on the issue will push that number up even more. And when a small business leads the way in generating demand, they pave the way for larger scale change. Of course, there are ups and downs along the way, but balancing planet and profit is as much an opportunity as a challenge.