I’ve just read about a scheme in Uruguay to give free entry to clubs to people who register zero for alcohol on a breathaliser.  The Ministry of Public Health introduced the scheme in order to combat drunkenness and alcohol poisoning amongst  youngsters who often drink on the beach in the day, before a night out,  to save money. The scheme is designed to  discourage them from drinking in excess, and also benefit participating clubs, since the youngsters will buy more drinks in the club while, hopefully, still consuming less overall.

It looks like a potentially win-win arrangement, and I wonder whether it might work in the UK too, where similar problems exist. Thinking more widely, are there any potential win-win opportunities like this in your area of expertise and influence?